Optimus X Reader - Tumblr Posts

Transformers Masterlist

Universes: Transformers: Prime and Transformers One (until further notice)

Started: 4/14/22

Last Updated: 10/8/24

Requests: Open!

• ───────────────── •

TRANSFORMERS ONE

Orion Pax

-Cuddle HC's

D-16

-Cuddle HC's

Sentinel Prime

-Nothig here yet!

Optimus Prime

-Noting here yet!

Megatron

-Nothing here yet!

TRANSFORMERS: PRIME

Autobots:

Optimus Prime

-Soft NSFW headcanons w/ female S/O

Arcee

-Nothing here yet!

Ratchet

-Realizing he loves S/O

• ───────────────── •

Decepticons:

Megatron

-Comforting fem!S/O on her period

-Soft NSFW headcanons w/ female S/O

-First Kiss | TW: Drug Use

Starscream

-Comforting fem!S/O on her period

Dreadwing

-Comforting fem!S/O on her period

Predaking

-Comforting fem!S/O on her period

• ───────────────── •

What I will write: Fluff, NSFW, SFW, poly, mlm, wlw, gender neutral, human S/O, Tehcno-organic S/O, Cybertronian S/O etc.

What I wont write: Pedophilia, suicide, extreme kinks, more than four characters in something (it just becomes too much), being drugged, drugging someone else, homophobia, or racism.

• ───────────────── •

Here is my Grand Masterlist, where all of my fandoms are listed.

Be sure to include: Gender of reader (I do female, male and gender neutral), plot, character(s) you want (no more than four per ask), and what you specifically want (fluff, angst, smut, etc.)

Thank you, and request away if you’d like <3

@sunntownn , I love how you make Optimus is an anxious mess that worries for his soulmate but then there's his oblivious dumbass soulmate.

(replacing y/n with oc cause)

Yeah sure go take the crying faces as your pfp 👁️👁️ 💕

@sunntownn , I love how you make Optimus is an anxious mess that worries for his soulmate but then there's his oblivious dumbass soulmate.

(replacing y/n with oc cause)

Hey can I get three different scenarios if, Optimus, Mirage and bumblebee from Rotb, had met a tameranean who is like Starfire in a way, and is a princess. How would they react when they meet her and learn how strong and powerful she is, and what would their romantic relationship be like. Also the reader acts like starfire too, but I would find it funny if she kissed the Autobots to learn their language when she too comes to earth cause they were the nearest thing near her. Sorry if this is a lot I just love the idea since she too lives in space, that they may know a little bit about each other. Also I would find it adorable if they had sparklings with her since I head canon tameraneans can practically mate with anything. (I’m gonna scream if you except this, cause I don’t think you will but thank you for at least reading this! 🫶🏾)

i actually thought this idea was super cute, anon. I decided to do long-ish headcanons because I wasn't sure how to fit everything into one scenario for each.

[ tameranean!reader post includes: ROTB Optimus, Mirage, and Bumblebee

OPTIMUS

once he assesses that you're not a threat, I imagine he'd be super curious about your powers and abilities. Once he finds out you're too from space, I feel like he'll be able to confide in you a bit more than he would with humans?? Like, you're an alien like him, possibly stranded on Earth as well

he respects you so much, because wow you're a princess? He admires your bravery, especially if you're willing to help them. Despite being reluctant at first

Just imagined Optimus Prime bowing down to you a little, started going crazy

anyways

The Autobots were the first you came across upon landing on Earth, you didn't speak their language nor did you speak English. You proved you weren't a threat, but they didn't understand you or know your motives yet. You realized you landed on yet another civilization that doesn't speak nor understand Tamaraneans. And so, you did the only thing you could do. Optimus was the closest, so you gave him a simple peck on the mouth. The other autobots around were trying not to giggle at the look on Prime's face. He was shocked, confused, and maybe a bit flustered. You swore he didn't answer for a couple minutes when you greeted everyone.

He's suchhh a big fan of your Tamaranean features, you're so unique and yet so human as well. Again, he admires your bravery and strength and your attitude. Genuinely enjoys your company. If you're somewhere secluded, he'll go on a drive with you maybe flying next to him as you talk :3

I think Prime would be one to want sparklings with his significant other, he could only hope they will live in a world outside of war. He would never want them to experience what he and many others did. Also deep down, the Orion Pax in him that would've never thought about fighting in a war would've wanted to happily settle down somewhere. Knowing that you're a bit stronger/resilient than normal humans (or most types of aliens he knows of) he feels a lot more secure with having sparklings with you. How many? No one will ever know.

MIRAGE

okay so imagine you meet in the middle of a fight accidentally. You've been trying to blend in like a normal citizen of Earth ever since you got here, you were shocked to see that humans were in fact not the only species that lived here. Unfortunately for you, the same city you were staying at was being attacked by giant evil alien robots.

You're in the middle of the street, not really knowing the extent of what these robots can do. One second you see a Porsche, a semi truck, and a camaro speed past you and transform into more alien robots...but this time they're fighting the one destroying the city so they're good you think? The next second, you were too frozen in admiring these aliens when suddenly a car goes flying towards you.

It happens in slow motion, Mirage is the only one who sees it go straight for your face. But he's confident, he knows he can catch it and save you. Except...it slips through his servos. His spark nearly stops. Instead of seeing a poor 'human' go spat on the ground, he can't believe his optics when you reach out and catch the fucking car??

After that whole incident, he's asking you a bunch of questions. You give him a lil kiss so you can answer him in his language, you're slightly surprised when suddenly you know english and cybertronian, whatever that is

Honestly, I could imagine Mirage never letting go of that kiss, like he's going to joke about it for years.

You're a princess? hell yeah, he thinks you're super badass and wants to see you in action tbh. He's still gonna act like a knight in shining armor but he knows you can handle yourself, he wants to impress you fr

Wants you to teach him your language, he will try but it'll sound like gibberish. Either that or he will learn it immediately because uhh cybertronian super advanced robot?

He's definitely an excited father to your sparklings, you will need to make sure he doesn't teach them to be troublemakers because HE WILL raise them into little fuckin risk takers

BUMBLEBEE

Unfortunately he would not be able to learn your language since there are no tameranean radio stations.. but hey you can still kiss him!

once he gets to know you and where you're from, he's a huge fangirl I think

definitely hypes you up and praises you when you chuck a car at a deception or something. Once he knows you're probably as strong as they are, you guys do some cool combos out in the battlefield.

power couple !?!?!

jokingly does a little bow every time he greets you, then crushes you in a hug. Probably plays some cheesy line from some radio station

he lovesss how you're so kind and compassionate to species you don't know and a planet that isn't yours, but also the fact that you're brave in the face of danger. He knows you can defend yourself and still come back to give him a lil kiss afterwards

he asks if you can carry him. you probably lift him up by one hand and he's going crazy that you might drop him.

you will both learn about Earth together, as well as each other's home planets :3

laying out in the middle of nowhere, staring at the stars and reminiscing about your home? of course

he'd be sooo nervous about sparklings, nervous but excited. He'd be the most caring boyfriend and equally as caring father

thinks your sparklings are the cutest ever ever

Can we get a scenario for Optimus and Megatron from both Earthspark AND TFP where a young adult human (gender neutral) accidentally calls them "Dad"?

TFE&TFP Optimus and Megatron x gn reader

Grrr hi anon! I loved your request- I adore Earthspark Megs, I'm so glad you requested him. I wasn't really paying attention so idrk if these count as hcs or scenarios, but I hope you enjoy anyways!

TFP Optimus: You were discussing plans for what to do with a new relic with Optimus, when you slip up and accidentally call him dad. He abruptly stops speaking as you embarrassedly apologize to him. "I'm so sorry, it just slipped out-" You stammer. He cuts you off with a wave of his hand and a gentle smile, reassuring you that it's perfectly fine. He doesn't say it out loud, but his spark soars knowing that you see him as a father figure, and he acts more like a parent to you than ever before after this incident. He's remarkably protective of you, because deep down, he fears that he'll fail you and you'll get hurt because of him.

TFP Megatron: The two of you had surprisingly become close, and Megatron often confided his plans with you. When you called him dad in the middle of one of your discussions, you didn't even realize it at first- you just kept casually talking. Megatron, on the other hand, noticed it immediately and was confused. How could you see him as one of your kind's family members? To spare your pride, he doesn't bring it up. To be quite honest, he's flattered that you think both so highly and fondly of him, even if you didn't realize it at the time. Later, he tries to teach you some decepticon traditions in order to include you in his version of a family.

TFE Optimus: You were a new recruit for G.H.O.S.T, before they somewhat shut down their operations. The two of you got along fairly well, and during one of Optimus's grand speeches, you accidentally called him dad. Fortunately/unfortunately for you, he 100% embraces the role. The second you call him dad, he becomes insufferable. Be prepared for nonstop dad jokes and life advice. Maybe he'll take you fishing, who knows? Either way, you're not getting rid of him because he has crippling anxiety and doesn't want anything to happen to you.

TFE Megatron: You were watching over the terrans as a babysitter of sorts, when you slip up and call Megatron "dad". He smirks and laughs it off, not being surprised by it. The terrans often called him dad, on purpose or by accident, and he was relatively used to it by now. However, anytime someone calls him dad, whether it be you or the terrans, he can't help but feel a tinge of shame. He had once been seen as a father figure to Soundwave's cassettes, and he's constantly reminded of how he failed on that account. He can't bear the thought of letting you down too, so he makes a promise to himself to be better. He puts in the effort to spend more time with you after discussing the role he plays in your life, and he offers as much advice as he can. Megatron is always there when you need him, for problems big and small.

Imagine femme bot reader being a hugger/cuddler. Femme reader is also lovable, short, and childish, so they get a lot of admirers.

No continuity or characters were given here but my brain just immediately went "Earthspark" and imagined Femme!Reader is also just a really loving and supportive teacher to the Terrans. LOTS of hugs and pats on the back when the kiddos do a good job. Not to mention every single Cybertronian in this continuity needs a hug I stg

Content Warning: Mentions of PTSD in this one. TBF that's probably a warning for a LOT of my stuff - there's robots be traumatized.

The Earthspark!Autobots recruiting a Femme!Autobot who is a smol, energetic cuddler would include...

Optimus has always been pretty casual about giving his cohorts pats on the back/side hugs/etc, but they don't so often respond to him as enthusiastically as you. They see him as this larger than life thing,  so it makes him really happy that you're so relaxed around him. Between that and how you make sure the Terrans receive physical reassurance, and the two of you become fast friends.

Elita-1 doesn't really initiate hugs, being more of a words person, but once she adjusts to how physical you are she will crush you with affection in return. She immediately gets the sort of bot you are and recognizes your warmth as strength. She will call anybody out who assumes your childish nature makes you naive. Speaking of which....

Megatron has zero idea how to deal with it when you straight up hug him in front of everybody for the first time, and it shows on his shocked face in a way he may never live down. During the war, he never let anybody that close, and while he's mellowed out a great deal now, most bots would be afraid or at least cautious to try being so affectionate with him. He's likely the most prone to assuming your demeanor means you're innocent, even if you've actually suffered from the war as much as anybody else.

Wheeljack ends up asking you for advice on being more open and warm with Twitch - it's not something that comes naturally to him, and he can tell physical reassurance does her a lot of good. You help him out and in return he often has a new gadget for you as a thank you present... to mixed results.

Bumblebee is the most hesitant around you at first - the last thing they need is another child running about, for Primus' sake. Autobots need to be mature and professional. But eventually, he realizes nothing about your sunny disposition keeps you from doing the job at hand just as well as the rest of the team, and from there it doesn't take him long to get attached. 

Arcee is the most like you in disposition AND size, so you two immediately click. She's not as much of a hugger as you, but will respond enthusiastically to a hug by straight up LIFTING you off the ground and swinging you about. The terrans LOVE when you two are teaching, because you're the most encouraging and least intimidating duo of any of the Autobots.

Please, for the love of Primus, give Grimlock a hug. He's not going to openly ask for one, but he needs one badly. He never acts too excited when you hug him but also never backs away or tells you to stop... and you notice the more you comfort him, the more likely he is to come to you when he's had a rough flashback or is otherwise just feeling out of sorts, and not so subtly sit or bend over in a way that makes it easy for you to reach up and hug him.

If you're doing request, fluffy hc's for tfp Optimus and cee with human so??? These two need some love<3

Thank you and have a good day/night!!!!

Optimus: Unfortunately, he can't spend as much time with you as he'd like because he's so busy, but he really enjoys every moment you two are together

When you can't sleep, Optimus takes you in his arms and tells you old legends

When you fall asleep, Optimus will just admire you for a while before very gently tucking you into bed

He often calls you a star. Your bright smile, your faith in him help him not to give up

Sometimes you feel like you're in a fairy tale because his gestures can be a little old-fashioned (bows, kisses with the back of the hand...he's a gentleman)

He enjoys those evenings when the two of you sit in cozy silence and look at the stars. Time seems to have stopped, at this moment he is not thinking about anything. It is with you that he is so calm and comfortable

Optimus is wise and experienced, so you can always turn to him for advice, he will listen carefully and try to help

Optimus will do everything possible to make you happy and not stop shining

Arcee: She's always very worried about you, so when you go somewhere, you have to be in touch, tell her where you're going and what time you'll be home (she's just like a mom, hehe)

She is so used to your trips together

You just talk, joke, and it works like therapy for her after a hard day

When Arcee is upset, she doesn't want to talk, so you just silently sit next to her and hold her finger

She is incredibly grateful to you for this

Believe me, if you get sick, she will not take a step away from you. She will monitor whether you are taking your medicine and whether your temperature has risen

She might scold you a little for not dressing warmly enough or not taking care of yourself, but please don't take offense at her, she's just worried

Although she doesn't always say it, Arcee really does value you and will do anything to protect you

I hope you liked it!!

TF NSFW Headcanons #2 - Optimus Prime

Warnings: sub/bottom Optimus Prime + heavy praise kink + breeding kink + he's so malewife + size kink + lots of kissing + rough sex + oral fixation + slight humiliation kink + he's such a whore for praise + i hope you guys like transforming trucks

A/N: The interpretation is up to the reader, but I was imagining idw Optimus while making this.

-> Frame Optimus is your type of mech if you like big, beautiful mechs who are most likely stronger than you. Optimus has wide, heavy set hips and thick white thighs that many of his berth partners ask him to suffocate their heads with. He has a wide and heavy chassis that's warm and soothing to the touch especially due to the matrix inside of him. His finials are actually very sensitive and he loves to have his partners tug on them as he whines a bit. His deep baritone is so soothing to listen to, and sounds heavenly when he lets out long moans or the occasional whine or whimper when he's overstimulated.

Optimus' array is exactly what you'd expect from a mech of his size. His spike is quite proportionate, the same gray color as his faceplate with red and blue strips of biolights decorating it. His valve is so pretty, a blue color with blue pulsing biolights and a bright red node which also happens to be very big, drawing his partner's attention. Optimus' valve is plush and deep, softly massaging his partner's spike as they sink themselves in as far as they can. His matrix-powered frame has built in magnets that makes his valve suck in his partner's spike even deeper and stimulates their spike.

-> Breeding If there's anything you want to do with Optimus during interface to guarantee that he'll overload is to promise to breed him. This kink shows when Optimus hears his conjunx talk about how they'll fill his gestation tank up with their transfluid and have him carry their sparkling, he doesn't take it as a threat, he takes it as a promise. When his conjunx finally frags him just how he likes it, his deep moans fill the room as his valve takes the spike inside of him deep. Once his conjunx announces that they'll breed him well and good, no matter how close or far he is from his overload, he will overload so hard that he might just short circuit, his HUD flashing with warnings of overheating. Finally, the feeling of transfluid filling his gestation chamber is so euphoric that depending on how far off he is, might result in an overload so powerful it causes his whole systems to reboot. This kink makes mating press is his favorite position<3

-> Size Kink Optimus has a size kink but not in the way that many people would think. Optimus doesn't care too much about the size of his partners, but he definitely enjoys when his partners can manhandle and dominate him, especially when they're smaller than him. He loves to see his smaller partners on top of him as they push him into whatever surface they're interfacing on and just frag him so hard that his helm is left spinning. His smaller partners get an ego boost when they see how compliant the Prime is for them that it riles them up, giving them the energy to last longer in Optimus' tight valve as they tease him about how desperate he is for a mech that's almost half his size. It makes him burn with humiliation yet he just can't get enough of it.

-> Oral Fixation Optimus loves to have something filling his mouth. He gets easily excited when his partner brings their servo up to his mouth and presses their digits into his intake, prodding at his glossa. He'll gladly choke on those digits if his partner wishes so. Even more gladly, he enjoys sucking spike. He'll worship any spike in front of him no matter the size, his glossa working itself up and down the spike's length, deepthroating it as far as he can. And he will take all of it. He lets out adorable moans as he bobs up and down on the spike in front of him, making sure to pleasure his partner. Even he gets off on it, his charge quickly raising as he services the spike in front of him. And if his partner fucks his mouth? He'll absolutely lose it. Optical fluid will streak down his face as he lets out choked moans, his partner ramming their spike down his intake. His panel will retract and his lubricant will drip onto the surface below as he tries desperately to not touch himself.

-> Kissing Connecting to his oral kink, Optimus loves to kiss his partner. It's embarrassing for him to admit, but intense makeout sessions is one of his biggest kinks. The way that his partner's glossa invades his intake, wrestling Optimus' own glossa for control. Optimus gets so light headed that all he can do is whimper into the kiss as he allows himself to be dominated. He enjoys it at any pace, whether the glossa invading his intake is slow and loving or rough and passionate. He could very well overload just from the feeling of his intake being assaulted by a highly skilled glossa, bonus points if the mech is holding his hips or waist tightly as they grind their leg against Optimus' panel.

-> Praise Optimus has a praise kink. No arguments. The poor mech has the weight of the whole world on his shoulders, his autobots always looking up to him as their leader, all his enemies wanting his head, it's just so much for him to deal with! But whenever his partner has their servos roaming his frame as they coo into his audials of how much of a good bot he his, how beautiful he is, he'll be putty in their hands. He always whines when he's being praised because he truly doesn't think he's deserving of it :(. Optimus loves being praised while sucking spike because it makes feel so good. To just swirl his glossa around a spike as his partner grunts above him, praising him for all the hard work he's putting into servicing them. It always gives him this fuzzy feeling in his processor and is the easiest way to get him deep into subspace.

i need optimus pussy so bad

You're so real for that I'm actually going to make a whole thirst for this

warnings: dom/top reader + sub/bottom optimus prime + cybertronian reader + sloppily eating out Optimus' valve + praise + prime gets wrecked by the power of oral

a/n: thank you so much for giving me the inspo to create this🙏🏾

╰┈➤ Just imagining Optimus laying down on his back and presenting himself for you, large white thighs shyly held open while his digits tentatively hold open his already leaking slit. It's not that he was necessarily scared or nervous, but he can't help but let shivers run down his spinal struts as you admire his valve so intently.

╰┈➤ You were mesmerized by his pulsing blue biolights decorating his valve lips and his oh-so-pretty red node resting in the hood of his valve. His array was the prettiest one you ever saw, When you say that out loud to him, he lets out a small "thank you" and tries to cover his pretty pussy with his servo but you move it out of the way, causing him to let out a whine. You look up from your spot between his thighs and drink in the look on his face. His battle mask was off. His optics are half-shuttered, the light coming out dimmed. A very prominent blue flush is spread across his face and his mouth is screwed into a slight pout. He was so cute and you hadn't even dome anything to him.

╰┈➤ Way too soon, your glossa is on Optimus' valve, and he lets out a short yet embarrassing yelp. In his defense, even though you had done this so many times before, you were always so quick to push your glossa into him and you never held back. Your glossa delves into Optimus' wet heat, forcing it as deep as you can as you listen to the Prime let out moans with his low baritone. He feels your nasal ridge crushing his node and the pleasure bursts under his eyelids.

╰┈➤ Optimus' thighs begin to automatically clamp down on your helm but the slight crushing feeling only raised your charge. You eat him out like a starved mech, sloppily lapping at every node you can feel in the mesh of his valve and making sure he can feel it. By now, Optimus is so close to overloading, he always overloaded quickly from being eaten out. If you lifted up your helm you would see Optimus biting on his servo joints, trying his best to not let out his embarrassing noises but clearly failing.

╰┈➤ With your eager mouth, you'll bring Optimus to overload so hard he won't even know what hit him. He'll let out a series of staticky moans while his thighs clamp down hard on your helm while he squirts, and you'll still work your glossa in his valve despite his recent overload. He'll whine and push at your helm but you both know that those weak pushes don't mean anything-- he doesn't want you to stop and you don't plan on it.

╰┈➤ You'll make him overload a few more times, each overload more powerful than the last. He keeps seeing stars in his vision and--oh Primus-- he's overloading again. He'll sob as he squirts for a last time, his frame trembling from the aftershocks as you suck on Optimus' node for the last time before releasing it. You're almost 100% sure you were left with some kind of helm processor damage, but you really didn't care. After you've eaten his valve out to your satisfaction, you bring helm out from between Optimus' legs and lay your frame on top of his. Your derma meet his and you begin to give each other messy, open-mouthed kisses. His optics shutter close as he whimpers into the kiss. Your servos roam his frame and you map out his familiar curves, lightly groping them, especially his chestplate while the Prime lets out sensual sighs.

╰┈➤ Underneath you, you feel his thighs tighten and rubbing against each other. Making out was getting Optimus charged up again, and it didn't surprise any of you. While your spike pressurized against his abdomen, you knew that you would make sure that your conjunx would be quivering in pleasure by the time you were done with him.

PLEASE I LOVE THIS FATHER DAUGHTER MOMENT WITH MIC (my oc) AND OPTIMUS

To Be a Father

A/N: I am pleasantly surprised at how well this turned out, and I must say I believe it to be one of the best that I’ve written! Hopefully you’ll think the same, haha.

Happy Father’s Day to all you dads out there. You rock. <3

Title: To Be a Father

Summary: Optimus spends the day with you by the lake.

Words: 3048

It wasn’t often that Optimus Prime got a day off from his duties, but when he did, each time was more likely than not going to be spent with you. In previous years it had proved quite difficult to do so, as you had school to attend and lived with your family in an entirely different state, but as soon as you turned eighteen you took up an apprenticeship at NEST. Your brother, Sam, had also been offered one, but apparently he much preferred the quiet life as opposed to you, who took up the aspiration to somehow be involved in the military as soon as all things Cybertron came to Earth. Of course, Optimus adored the extra time he got to have with you, but he vaulted straight into what Will and Epps had dubbed his ‘Daddy Mode’ any time something even partially dangerous cropped up and completely refused when you asked to join him. You still shivered at how mad he’d been that one time when he’d discovered how you’d sneaked out of the Base to follow him and the other ‘Bots… granted, he’d only discovered you because a Decepticon had somehow managed to slice through your upper arm, and that was most likely the reason why he’d been so mad and refused even more from thereon after… but, still. You’d joined for the whole military experience, and that certainly wasn’t what you were receiving. 

It had come as somewhat of a shock at the beginning when Optimus began to act as though he were your father. After all, who could get used to seeing a robot look after a human as though she were his own? Nevertheless, that shock had subsided almost five years ago. Now, it would be a surprise if the alien Commander didn’t treat you as he did. Everyone had accepted it, and it was practically custom at the Base to expect nothing less than Optimus being the one they go to when something concerned you.

He was your guardian, no doubts about it, and neither of you would have it any different.

“I can’t throw this to you!”

Lake Chelan was beautiful on a summer’s day. The cool, blue-grey water glistened in the evening sun, dancing on the the small ripples of waves as they glossed over the surface. The trees surrounding it rustled in the warm breeze, leaves toppling off and floating down to the grassy ground where they lay surrounded by wild flowers and mounds of dew-dropped blades of emerald.

Both you and Optimus had first visited it when exploring the new Headquarter’s surroundings in Washington. Thankfully, it had been winter at the time, so the place had been empty enough that nobody noticed the thirty-two foot alien robot trekking through the trees with a human sitting on his right shoulder, and the two of you had been able to explore as thoroughly as possible. It must have been on the third trip to the lake that you’d stumbled - and quite literally at that. Optimus had tripped over a fallen log and barrelled straight through a rather large canopy of trees and bushes - across what you’d since dubbed your ‘secret hideaway’. It was a beautiful area of the lake which had seemed pretty undisturbed, housing all sorts of creatures that unfortunately ran as soon as Optimus came crashing through their home. It was overgrown, dotted with flowers which were all the colours of the rainbow, right next to the glittering lake, and it was utterly beautiful. Optimus had done his best to arrange all the trees and such back into the places they had previously been so that it would remain a secret to everybody but the both of you, and, so far, even after four or so years, neither of you had encountered anyone else in that part of the lake. 

Today was one of those rare days in which the Prime has been given a day off, along with many other men at NEST. It was what the humans called ‘Father’s Day’, and those who had children to return home to had been granted permission to do so. Optimus was no exception. He had bustled you into his truck and sped off towards Lake Chelan with absolutely no sign of hesitation, and the two of you had been there for six hours, now. The sun was beginning to set, casting a magnificent glow over the shining lake and painting a gorgeous canvas of reds and oranges and yellows in the clear sky. He doubted the both of you would get home at all tonight, if your complete lack of boredom had anything to say about it, but he couldn’t admit that he cared that much. He did not mind where he was, as long as he was with you, and you were happy. The moment he returned home, work and his duties would slap him right back in the face.

“Of course you can.”

“No, I can’t. This is Will’s ball, and I’m not gonna return it to him, completely squashed, with a crappy explanation like ‘I threw it to Optimus and he burst it’.” You gave the ‘Bot a look, hugging the blue blow-up ball to your chest, and Optimus chuckled. He was sat on the ground, one leg stretched out in front of him while the other was bent at the knee, and both arms braced on the grass behind him. He was the most relaxed he’d been in quite a while, and most stoic generals who marvelled at the Autobots every time they visited NEST would more than likely feel faint at one sight of the position the stern and battle-ready robot was currently in. 

He shook his head. “You over-estimate my strength,” he told you, and you scoffed.

“Nobody can over-estimate your strength.” You turned and threw the ball in the air. “We’ll have to find a bigger ball.”

“One that is not plastic.”

“And one that won’t burst at a slight touch of your finger.”

Optimus smiled. “We best get to searching once we return, then.”

You mirrored his smile, throwing the ball once again. A bird flew over you, followed by a couple of what you supposed to be its babies, and you couldn’t help but laugh as Optimus immediately moved his head, not fancying another case in which birds attempted to nest on him. Waking up with an itching feeling and reaching his hand up only to pull back in surprise when the ruffle of feathers and cacophony of chirping reached his audio receptors was not something he wanted to experience again. You had not stopped laughing for at least half an hour after while he sat, back resting against a tree, arms crossed over his chest and the most ill-tempered look on his face.

You threw the ball up once again and quickly clasped your hands together, bouncing it on your fists when gravity pulled it down. One of those hands immediately came up to clap over your mouth as the ball flew straight towards the Prime and hit him right in the optic. He made a shout of both surprise and discomfort, one of his flapping arms covering where it had hit. “Ow…”

“Optimus, I am soho sorry,” you apologised, though the giggles spilling from your mouth did not aid at all in moving that apology along the right path. “I didn’t- Ihihi didn’t mean to do thahat.” 

Optimus grumbled something in Cybertronian under his breath. “When do you ever…” he muttered.

You shrugged. “At least it wasn’t the birds.”

The ‘Bot narrowed his optics and immediately made to leap up after you, causing you to squeal, turn around and dive into the water. Optimus’s mood changed immediately and he frantically shook his head, leaning forward and making a grab for you, but you were already completely submerged. “Those are the only clothes we have with us, Y/N,” he lightly scolded as you reached the surface and gasped for air, hair plastered over your grinning face.

“I don’t care! The water’s warm!”

“That is what you said the last time before you proceeded to come down with the influenza.” He heaved a sigh and leaned back, seeing that there was nothing he could do now. If you suffered through another nasty sickness, then he couldn’t say he hadn’t tried to stop you. 

“I’m gonna swim to the other side,” you told him, and he rose an optic ridge.

“Are you, now?”

Biting your lip, you swam up to the edge of the lake and crossed your arms over on the grass, resting your chin on top of them. “Optimus,” you said, gaining a very sweet smile, “can I swim to the other side of the lake? Pretty please?”

The Prime smiled. “Yes, but be careful out there. If you drown, do not expect me to save you.” He winked, cobalt optics twinkling mischievously, and you laughed.

“I wouldn’t expect anything less.” Before the Prime could question what exactly that meant, you were off. He shook his head fondly and gazed out across the lake, marvelling at the mountains in the distance as the slight wind breezed over him. His silent peace was swiftly interrupted, however, as he noticed an incoming call. Frowning, he accepted it quickly. “Optimus Prime,” he said as way of greeting, sitting up.

“Optimus, hi. It’s Ron. Ron Witwicky.” The ‘Bot visibly relaxed at that, having previously been worried that it may have been Ratchet or somebody back at Base, telling him he needed to return due to an emergency.

“Good evening, Mister Witwicky,” he said. “How may I help you?”

“Ah, I was just wondering if Y/N was anywhere nearby? I tried calling her mobile but she won’t answer.” Optimus glanced over at the backpack you’d thrown by a tree a little way off. No doubt your phone had been going off in there for a while, but when you were faced with nature - especially when you were with him - electronics no longer became a thing of existence to you.

“Yes, she is here, though…” He turned his head slightly, noticing how you were still splashing through the water. “I am afraid she is quite far out in the lake as of now.”

He heard Ron chuckle. “At Lake Chelan, are you?”

“We are, yes.” 

“Typical. Said she’d ring me this afternoon to wish me a Happy Father’s Day and it’s, what? Six pm, now?” He breathed a laugh, and Optimus could imagine him shaking his head fondly. “That girl, Optimus, I swear to God.”

The Prime smiled. “I apologise on her behalf, Mister Witwicky,” he said. “I shall remind her to call you once she gets back.”

“Yes, you do that, big guy. Tell her her dad’s been spending the day drinking beer and watching her mom’s channels on TV. Make her feel guilty.” 

Optimus threw back his head and laughed. “Oh, I will,” he said. “Where’s Sam?”

“With his girlfriend, I expect. He called in this morning, which was great, but it’s pretty tough not having a Father’s Day hug from my little girl for the first time ever.” Ron’s voice drifted off a little, and Optimus nodded to himself, completely understanding. You were, after all, his only daughter and youngest child. To have you living hours away from him must be extremely trying, for both you and your parents - and Sam, at that. Primus knew how difficult it was for him to cope when you had to leave to go back home and he knew that he would not see you for another few months. He could only imagine how your family felt.

“Of course,” he said understandingly, “though she will be visiting fairly soon, remember that. She misses you and her mother, also, as she does Sam. I am sorry it is proving hard for you.”

“Oh, don’t be sorry. She’s eighteen - I sometimes forget that’s how old she is - and she’s gotta go out and make her own way at some point, right? I’m damn happy she has you with her. If she didn’t… let me tell you, Optimus, both Judy and I would be worried sick. But the simple fact that you’re keeping an eye on her means the world to us.”

The Autobot smiled. “I assure you, Mister Witwicky, I am keeping both eyes on her. She is safe, and I’m sure it will give you great relief to know that she is very happy. She gets on tremendously well with the rest of the men, and, as you know, my ‘Bots are every bit as much her protectors as I am.”

“That means a lot, pal, thank you. It really does.”

“Hey, Optimus! There’re fish out here!” The Autobot glanced up as your voice echoed around the lake, and he smiled when he saw you out in the middle, treading water while you spun around, seemingly following the fish beneath you.

“See if you are quick enough to catch one for your dinner!” he called back, and if he was close enough he was positive he would have seen you roll your eyes. He heard chuckling on the other end of the line. “I assume you heard that?” he asked, and Ron’s laughter grew.

“I did, indeed. You wouldn’t think she was eighteen, would you?”

“No. She still has that flare of innocence and complete youthfulness that I remember seeing in her all those years ago.”

It was silent for a moment before the man spoke again. “We did good with her, didn’t we?” he said, and though Optimus sub-consciously frowned for a moment, wondering what he meant by ‘we’, he nodded.

“Yes,” he replied, “I believe we did.”

“You know, this is as much your Father’s Day as it is mine, Optimus.”

Ah. That must have been what he meant. Optics widening the smallest bit, he opened his mouth to speak before shutting it again and waiting a moment. “It… is?”

“Yeah, pal, of course. You’ve known her for as long as she can remember! You’re her guardian, her protector… she considers you her family. Hell, we all do. That kid wouldn’t be half the person she is today without your help, Optimus. You keep her out of trouble, both when she’s with you and when she’s here at home.” He paused for a second. “Do you remember that time she got so moody just because she missed you? She was fourteen, then.”

Optimus’s face softened as he immediately plunged back into some of the sweetest memories of his life. “I do,” he said. “Sam called me up and asked me to talk some sense into her, and I told her not to be upset on my account and to simply think about the fun we would have when she came to visit in the summer.”

“And she cheered right up,” Ron said, smile evident in his voice.

Optimus weakly shrugged. “Patience is not one of her strong suits.”

“Yeah, definitely not,” the man said with a laugh. “Look, what I’m trying to say here is… you are a father to her. Whether you like it or not, whether you meant for it to happen or not, you are, and you’re a pretty amazing one at that. I’m thankful for you, Optimus, really, I am. You’ve shone a light on our girl’s life that I would never have been able to put there alone. You devote a lot of your own life to her, even though you’re busy as hell, you reprimand her, praise her, look after her when she’s sick, teach her what’s right and wrong… sometimes I’m learning from you. You are what it means to be a father.”

Optimus was, quite honestly, a little lost for words. Of course, he had always seen himself as some sort of father-figure to you, but to hear your actual father say it himself meant more to him than he could ever have imagined. He’d always worried about it - about how much time he was spending with you compared to how much you were spending with Ron. Would he ever be jealous? Upset? Angry, even? That someone else had stepped into your life and was now sharing his role as father? He would never wish to take that away from either of you, but to completely give up this role would have been torture for him, so he hadn’t. And yet that thought had always been nagging in the back of his mind. Nevertheless, to hear that your father was, in fact, one hundred percent grateful and, in actuality, relieved for the support in raising you gave peace to his entire being.

A smile spread across his face, and he couldn’t help but sigh in what could only be relief. “I cannot explain in words what that means to me, Mister Witwicky. I hold what you have said very close to my spark, and I can only say that it is my absolute honour to be able to share this with you. I love helping in looking after your daughter, and I love her. More than I will ever be able to say. Thank you.”

“It’s nothing but my pleasure, Optimus, honestly. Who else can say they share fathering duties with an alien robot, huh?”

Optimus chuckled, turning his head to gaze out at the lake yet again and easily catching sight of you continuously diving under the water and resurfacing seconds later, apparently trying your luck at catching a fish. His smile widened. “Not many people, I would assume,” he said.

“She still swimming?”

“Yes, though I can call her back if you wish to speak with her now?”

“Oh, no, no. I want her to spend this day with at least one of her dads. I’ll call her later.”

The Prime nodded. “Alright. It was nice speaking with you.”

“And you. Happy Father’s Day, Optimus.”

Looking back across the lake once more, Optimus was surprised, to say the least, when he saw you splashing around in the water, a fish struggling in your hands. He rose an optic ridge, lost for words for a brief moment, before he blinked and shook his head, breathing a soft laugh.

Ah, the joys of fatherhood.

“Happy Father’s Day, Ron.”