(I Thought I Already Posted This But I Clicked Save As Draft Not Post)
(I thought I already posted this but I clicked save as draft not post😭)
I love my pink theme but sometimes I wonder if it makes people shy away from my works😓 I just wanted to hear the opinions other people
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More Posts from Onlyyvette
[req] idw rodi and oppy maybe?? op getting spiked down by rodi (who won't stop even after multiple overloads) in a mating press is *chefs kiss* 🤌
Interesting Incentives
![[req] Idw Rodi And Oppy Maybe?? Op Getting Spiked Down By Rodi (who Won't Stop Even After Multiple Overloads)](https://64.media.tumblr.com/6866ced0790df43af4f93b06a1063c71/16192dae1f5fa2fc-06/s500x750/f09a20520dbbab76780c4fc07348e05c94a96812.png)
![[req] Idw Rodi And Oppy Maybe?? Op Getting Spiked Down By Rodi (who Won't Stop Even After Multiple Overloads)](https://64.media.tumblr.com/26db57ee2d23c686238f38037c9ecca1/16192dae1f5fa2fc-d3/s500x750/525205760f59b82091804261d8c31f8e6d385312.webp)
warnings: sub/bottom optimus + top/dom rodimus + breeding kink + rough sex + valve eating + a bit of humiliation + overstimulation + mating press + dacryphilia + Roddy hates doing his work + but if he gets the Optipussy out of it best believe he's getting it done🙏🏾
word count: 2320
a/n: I don't usually write much for Optimus/Roddy but I really enjoyed this ^-^ to add on to this I had to only put their names in their respective colors because making their writing colored was literally hurting my eyes...
Also while this takes place in mtmte, just pretend they had a canon iteration there for this scenario to happen
![[req] Idw Rodi And Oppy Maybe?? Op Getting Spiked Down By Rodi (who Won't Stop Even After Multiple Overloads)](https://64.media.tumblr.com/6e6f0988e048c021620834e772ee7ce1/16192dae1f5fa2fc-81/s500x750/ac6f6e5209707a9f446dbd1e8bfaca7155e549c5.png)
"Optimusss," Rodimus groaned, his helm hitting his desk with a heavy thunk. "I can't do this. Seriously, I can't. You know paperwork is one of my very few weaknesses," he huffed. Rodimus had been tasked with filling out some paperwork on some incident involving his crew doing certain things on certain foreign planets that they shouldn't be doing...Like he cares about that! Like yeah, maybe Cybertronians are banned from certain planets for that reason, why should he have to pay for it?
"Rodimus. We've already gone over this. If you're not able to keep your crew in check, there will be consequences." Optimus feels like he's explained several times over and over again. Probably because he has. "I get it, I get it. But do you know how boring this slag is? By the time I finish this work, a new war would have started, another 4 million years---"
"Okay, I understand." Optimus interrupts him and sighs heavily, closing his optics. How could he get the speedster to get through his work when he has the attention span of a turbopup? He open his optics only to find that Rodimus has started to scroll on his datapad, doing Primus know what.
Wait...what if there was a way to get him to do his work...
Optimus jumps a bit as he finally has an idea. It may be a bit...unrefined if the word fit, but it was his last chance to get Rodimus to actually get something done. "Rodimus." Optimus straightens up, catching the attention of the Lost Light captain. "I have an incentive for you to complete your work. One that I find you would consider."
"...What is it?" Rodimus seems a bit hesitant. Usually, Optimus' idea of a reward didn't match his own, but the look in Optimus' optics made him think about the possibility of the offer being worth it.
"If you finish your workload on time, I will allow you to interface with me however your spark desires." Optimus almost regrets what he says when he sees Rodimus choke a bit in surprise and bang on his chestplate, attempting to unclog the oral lubricant he choked on. He was no stranger to fragging Optimus as they were conjunx endurae, but for Optimus to just...lay fragging him on a table as a reward for him was something he did not expect from the Prime.
"Are you saying that...you're offering yourself up as a reward for me finishing my work?" Rodimus says incredulously. "You might as well just say: 'Finish your work and you can frag me silly'," Rodimus says with a mischievous grin. Optimus huffs as he turns his helm away a bit, his faceplate flushing a bit under his mask. "No matter how you believe I should have said it, but my offer still stands. I will be back in the next 6 joors. I would like to see your work done by then, Rodimus."
"No need to worry about me," Rodimus winks at the Prime. "I'll get it done in half the time." Optimus nods and exits the room. The moment the heavy door shuts behind him, Optimus sighs heavily. It's not like he wasn't open to holding up his end of the deal, but now he knows that Rodimus will only want to finish his work if he gets to frag Optimus. Not only that, but even he knew that six joors was too much time to give to the speedster to finish his work. He only gave that extra time because he truly was looking forward to Rodimus getting his reward.
Optimus shakes his helm, clearing his straying thoughts in his processor. Hopefully, Rodimus will take long enough so that Optimus can finish his proper paperwork. Still though, he can't get Rodimus out of his processor as he walks down the halls to his own office...
Not even a full two joors later, Rodimus calls Optimus' comm line and eagerly announces that he's finished. Optimus had only gotten halfway through his own work! Yes, he did expect Rodimus to finish in under his time limit, but he thought that the speedster was only bragging. Well...I've clearly been proven wrong Optimus thought to himself as he rises up from his chair and makes his way to Rodimus' office.
✿✿✿
Rodimus crowds Optimus onto his desk, placing his servos on both sides of Optimus' hips. "I told you I'd finish it in half the time needed," Rodimus purred as he nibbled on Optimus' finial. He only shivered and leaned into the touch. Rodimus placed a light kiss onto his conjunx's finial and laid his servos on his generous hips. "You don't know how badly I've been wanting this," Rodimus breathed out. Me either... Optimus thought to himself. The pair hadn't had much time lately to be with each other, let alone interface and it had left the both of them longing for each other.
Rodimus began to paw at Optimus panel and he let it slide away immediately. The speedster's digits made it's way to Optimus' valve, only to notice that it was already lubricating. Not that he didn't expect Optimus to be wet already but this much slick was...
Rodimus' suspicions were confirmed when he pushed two digits into Optimus valve and was met with no resistance at all. "Did you really open yourself up for me," Rodimus' optics widened in disbelief. Optimus turned away, his faceplate blushing furiously now. "Well, I know how hard you work when your focused and you seemed serious when you said you wouldn't take long so...I just decided to prepare myself for you."
Rodimus immediately begins to thrust his digits into Optimus, taking the Prime by surprise, causing him to let out an unrestrained whine. "Well aren't you sweet," Rodimus teased as he continued pumping his digits. "Mhh, nghh, AH---" Optimus' optics widen as he feels Rodimus grind one of his digits into his node. Harshly. "R-Rodimus please," Optimus begged for his conjunx to let up on the pressure to his node, his pretty blue optics gazing imploringly at his conjunx. It only caused him to press even harder, ripping a broken moan from the Prime.
"Relax," Rodimus rolled his optics. "You can take it, can't you?" Optimus inhales sharply when Rodimus doesn't let up and nods quickly. "Good," Rodimus praises his conjunx and leans into his faceplates. He gnaws a bit on Optimus' already kiss-bruised lips, asking for entry. Optimus parts his lips, allowing Rodimus to slip his glossa in and envelop him in a heated kiss.
Rodimus pushes the Prime down fully on his desk as he deepens the kiss, attacking Optimus' glossa and fully dominating him with just his intake. "Mhnghh...hmmm..." Optimus whimpered into the kiss, his processor feeling a bit fuzzy as Rodimus keeps up his assault in his intake. He doesn't even realize that Rodimus had been pushing him down until his spinal-strut hit the table.
Rodimus pulled away and admired his view of the Prime. Optimus' optics were half-lidded, his faceplate flushed the prettiest blue and he had a bit of oral lubricant running down the corner of his intake. Primus, he already looked fucked out even without fragging him. Finally taking his focus off of his conjunx's wrecked face, he decided to give more attention to his valve.
"I just can't get over the fact that I went so long without seeing this part of you Optimus," Rodimus says, lust filling his optics as he runs a digit down Optimus' puffy folds, watching them clench on nothing. "Thankfully, I'll be able to do more than looking today." Rodimus grabs the Prime by his large thigh and pushes his spike to Optimus' tight heat. He doesn't even remember when his spike pressurized but even that slips away from him as he pushes his spike into Optimus.
"R-Rodimus! Ahhh...nghh, not t-too fast---" Optimus whimpers as he feels Rodimus' spike fill him up so quickly. Rodimus' spike isn't that big for a mech of Optimus' size, but it's very long, Optimus sometimes feeling like it would hit his gestation seal if Rodimus goes too quickly. "Ah, s-sorry Optimus, you're just so---tight!" Rodimus punctuates with a rough thrust, directly into one of Optimus' more sensitive nodes in his valve, causing the Prime to let out an undignified moan.
Rodimus truly couldn't hold himself back. The magnets in his valve were practically pulling his spike in deeper and they were massaging his spike just right. Not only that, but Optimus' valve was so tight, so stimulating the it made him lose control. He tightens his grip on Optimus' thighs and pushes them back to Optimus' front, his thighs almost touching his windshield. "...What are you---" Before Optimus can get his sentence out, Rodimus begins pounding his valve so harshly that he chokes on his own words.
"HaaAH! Rodi-- AnGH! Oh!" Optimus lets out deep moans as Rodimus frags his valve with no restraint. With this new position, he can feel Rodimus' long spike getting dangerously close to his gestation seal. And it it was close to his seal, it also meant he was getting close to his forge..."F-frag you're so tight!" Rodimus groans as he pushes deeper into Optimus valve. At first, he doesn't know why but it's when he realizes what his spike is close to hitting does it finally click.
"Oohh, so I'm close to your seal, huh? W-want me to fill you up with my transfluid, yeah?" Optimus nods his head vigorously, his optics filled with charge. "Yes! Yes, want to-- Ohh! Mghnn, fill me up! Please!" He seemed so desperate to have his valve and forge filled up with Rodimus' transfluid that it only brought Rodimus closer to his overload than he would like.
"Y-you'd like that right? For me to to fuck your pretty pussy and fill it up so much you can barely walk?" Optimus whimpers at the speedster's crude use of human obscenities, yet it only makes him feel hotter under his plating. "Yes! Haah! Please, yes!" Optimus crying now, optical fluid flowing freely as it rolled down his face. He was so close to his overload, his frame trembling all over as Rodimus kept pumping his spike into him. His valve burned in such a pleasurable way whenever Rodimus' spike would reach deep into him, hitting his most sensitive nodes. "Rodimus! I-I'm---" Optimus' frame trembles violently as he feels his oncoming overload. "F-frag! Overload for me Optimus," Rodimus moans into Optimus' audial.
"GhhkK---" Optimus can barely even make any noise as his overload rocks through his frame. His valve drenches Rodimus' spike in his lubricant, tightening up almost impossibly so. "Hahh, Optimus---" Rodimus spills into him right after, painting the inside of his valve a light pink. As the pair lay down on the desk, their cooling fans spinning rapidly, Rodimus pushes Optimus' legs back into their previous condition. The Prime has a confused look on his face until Rodimus begins to push into him again.
"Rodimus, unghh...your still, ahh!" Optimus whines as Rodimus begins to frag him again. "You can go again...can't you Optimus?" Rodimus laughs breathily. "Nghh! I-I think I can---AH!" Optimus yelps embarrassingly when Rodimus bites down hard on his finial. He expected it to hurt and it did but...it only added on to the pleasure he felt with Rodimus' spike pumping in his valve. "Ahh! R-rodi---" The speedster shuts Optimus up with a violent kiss. His glossa forces its way into Optimus' intake, wrestling with Optimus' own glossa. The prime moans deeply into the kiss, allowing his intake to be dominated as Rodimus claimed his valve at a rough pace.
Optimus was an oversensitive wreck now, his helm spinning with the overwhelming pleasure his frame was feeling. Even quicker than the last time, Optimus overloads hard. "MMNGHH!" His load moan is barely muffled by Rodimus mouth on his. He squirts for a second time that night and can feel his frame run out of energy, his cooling fans working at the max. Rodimus still hadn't overloaded yet, still rutting into Optimus like his life depended on it. Optimus whimpered in overstimulation as the speedster continued to ravage his valve, chasing his own orgasm.
"Ghh---gonna overload! Optimus!" It was Rodimus' last warning before he finally released his transfluid into Optimus' valve. Optimus didn't know why, but Rodimus' last orgasm triggered another orgasm. It was smaller than the last two, but it still wasn't easy on his pleasure drunk frame. "Unghh...mmhnn, Rodimus," Optimus moans weakly as his orgasm passes through him, fully enveloping his frame in bliss. Finally, Rodimus pulled his depressurized spike out.
Once Rodimus saw the state of Optimus' valve, he was almost sorry he couldn't pressurize anymore. Optimus' valve lips were puffy from abuse and slick with his and Rodimus' overloads. His valve was absolutely drenched with the pairs' fluid, the lubricant dripping out of him a bit, creating an obscene image. While he couldn't frag Optimus again there was something else he could do.
Rodimus crouches and pulls himself close to Optimus' valve. He immediately presses his intake into Optimus' sopping valve, causing the Prime to make a a sound unbecoming of a Prime. "Hahnn, No more, oohhh," Optimus whines as he feels Rodimus glossa make its way into his valve, eating him out like it's his last meal. Rodimus sucks up all the transfluid in the Prime's valve, tasting the bittersweetness of their release. Wanting to give Optimus one last overload, he begins to rub furiously at his node.
"O-oh! Please Rodimus, I-I'm---MhHNGG!" Optimus overloads one last time, his vision whitening out for a bit before clearing again. As Optimus lays down on the desk, Rodimus slumped down on his chassis as they catch their breath, Optimus can't help but look forward to the next time he offers himself up as an incentive for his conjunx.
AHHH OMFG IGNORE MY LAST POST I DIDN'T SEE THAT I HADALREADY POSTED A POLL SINCE IT WOULDN'T SHOW UP ON MY BLOG OMFG THIS IS SO EMBARASSING
I'm fr about to start writing resident evil smut because there is a CRIMINAL lack of sub chris and carlos
I know I haven't been posting much for my other fandoms(I promise I will tho🙏🏾) but I think I'll start making some re fics because if I can't find what I want I might as well make it
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★ DAY 4 - breeding | grimlock
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kinktober 2023 - masterlist.
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warnings: top/dom reader + sub/bottom grimlock + cybertronian reader + heat cycles + breeding + robo tits + feral behavior + kind of dub-con since grimmy is in heat + public sex + you guys literally frag in the hallways of the ark + grimlock needs to get dicked down NOW + yes i do enjoy mechpreg sue me
a/n: Idk why but grimlock just awakens something in me; also this would most likely take place in the g1 show but i love using idw grimlock's design and character
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Another day that Grimlock was stuck on this stupid planet with it's stupid rocks, and it's stupid fleshlings, and of course, stupid Decepticons. And least, but definitely not last, this cursed heat-cycle from the Slagmaker himself.
Heat-cycles weren't typically too big of a problem for most Cybertronians. They were short periods of time where mechs charge soar to unbelievable heights once every few years, usually satiable by heat-repressants or a good session of marathon sex. Usually the first option was chosen, the second method being better suited for two or more mechs in heat that are able to keep up with each other. Even when none of those options were available, it's only the first day or two that are the worst, the heat enough to make a mech pounce on someone. Still, locking yourself in a habsuite with enough energon is an easy fix. But despite how relatively easy it is to deal with a heat-cycle, Grimlock just couldn't shake his off.
Grimlock first realized his heat was was approaching when he was "sparring" with another mech. In actuality, he was just working off some steam and chose the closest poor shmuck to help him out. When he barreled into his opponent and knocked them flat onto the ground, instead of letting up, he stayed leaning into them, heavily panting as he suddenly felt dizzy and...hot. It was when Grimlock realized the he was panting and damn near about to rut against the mech he abruptly got up and excused himself. Of course, without actually saying excuse me of course.
Grimlock immediately made a beeline to the medbay. He usually enjoyed his heats when he had potential partners, but the desolate planet he was stuck just made him want to completely get rid of that extra charge. He downed all the heat suppressants that Ratchet gave him and went about his merry day before that same sensor-clogging hit him again. But he already took the suppressants! While it made no sense to him why his heat was still persisting despite the medicine was beyond him, but he was quickly beginning to forget about that train of thought when the fog started to cloud over his mind...fuck he was so horny.
Grimlock could feel his array heating up, his spike throbbing as it begged to be released from its confinements and his valve lips drooling, already puffy without even touching them. Maybe he could just release his panel really quick and just sneak a servo under his array and touch his needy valve. Just a little bit though! Just enough to get rid of this annoying charge and...
Before Grimlock even noticed it, he was fingering open his valve, forcing his blunt digits into the dripping wet heat between his thighs. "Mmhhhghh...hahhh..." Grimlock panted heavily, continuing to thrust into his valve, hitting whatever nodes he could find. He whined, thinking about how shameful it was for him to be fucking himself on his digits right in the hallway of the Ark but it was oh-so-hard for him to linger on that though because of the dizzying heat clouding his senses. The dinobot began to slide down the wall he was leaning on for support because of how weak his legs were, yet his servo never left his array.
"Haahh--Ahh! Ghh..." Grimlock's moans became more vocal as he began to reach his high. By now, Grimlock was face down, his aft in the air trembling while his digits continued to pump themselves in and out his sensitive valve. His frame was running so hot and his processor couldn't even begin to worry about how mortifying his predicament was--he just wanted someone to help him out dammit!
✦ ✦✦✦✦✦✦ ✦
You were walking down one of the many hallways in the ark after coming back from a sparring session with another bot. Your frame was aching from the bruises you got but it was a pretty decent excursion. As you were making your way to your habsuite, you caught a whiff of a sweet, tantalizing smell. Instead of making your mouth water, it made your array feel tight. For some odd, unknown reason, you decided to follow the smell, heavy pedes picking up with speed as you went.
Before you could see what was happening, you could hear the sound of rasping moans and slight squelching sounds. Who in their right mind would be self servicing out in the open like that? Despite the question filling your mind, you turned the corner and were met with one of the most beautiful images your optics had ever laid eyes on.
There was Grimlock, powerful and fearless leader of the dinobots, writhing on the floor as he shoved four of his digits into his sopping valve, aft swaying as he let out pathetic mewls and low growls. Suddenly, his EM field enveloped you, pulsing messages of want/need/please/pleasepleaseplease-- The poor mech was a mess. The moment you saw him, you could feel your spike immediately pressurize with a thunk against your spike panel. You couldn't help it! What else were you supposed to do when one of the most attractive Cybertronians you had ever met was in heat, desperate for spike.
The moment Grimlock noticed your presence, he slowed down his digits pushing into his valve and spread his legs wider, a more inviting position. When he made a low whining sound and swayed his hips again, your patient broke and your spike released itself.
As soon as your spike pressurized, Grimlock took the opportunity to lift himself off the floor swiftly and tackle you to the ground so he was sitting on top of you. Now you were no small bot, you were nearly Grimlock's size but you were so caught up in admiring your superior's frame that he caught you off balance. In all honesty, even if you did know what he was going to do, you still would have let him. "Fffrag...frag me..." The arousal was practically dripping from the dinobot's words. He rolled his hips into you, rubbing his bare valve on the underside of your spike, wordlessly begging you to fuck him and a sad attempt to stop himself from just dropping down onto your length.
You groaned as the nodes on your spike brushed against Grimlock's plush, wet valve. You still couldn't fully believe the sight before your optics. Maybe that was the reason why you felt frozen in place while the dinobot helplessly rubbed his valve raw on your spike. Surprisingly, even in his heat-addled mind, Grimlock still wanted his partner to be okay with his advances. Finally though, you lifted him up with your servos on his waist, positioning him right above your spike.
It all went too quick when Grimlock lifted up his huge, crimson thighs and lowered himself onto your thick spike. "Graahh-- HaaAH! Ah! Mnghhh!" Grimlock threw his head back and immediately began bouncing on your spike. His greedy valve clung to your spike with every miniscule movement, as if it didn't want your length to exit his valve for a moment. "Hahh, Grimlock! Fuck..." You gripped his hips even tighter and took control, thrusting into the mech's warm valve, releasing howls of pleasure from said mech. He didn't even realize it, but by now, Grimlock's chestplates parted, revealing the soft protometal hidden within. His tits were large and heavy, a beautiful matte black color to them. He wasn't producing any energon, but it's not like that was going to stop you.
You immediately latched onto one of Grimlock's nozzles with your mouth, nipping it softly. The moment you did that, Grimlock fucking whimpered, holding onto your helm and pushing his refineries into your face. As you suckled on his tit, you could finally feel his heat affecting your own thoughts. All you could think about at that moment was fucking him hard and filling him up with your transfluid, sparking him up and repeating the process all over again. You let out a small growl at the thought of breeding the mech and bit down on his nozzle hard, causing the poor mech to spit out staticky moans. "I'm gonna fill you up... fill you with-- ah!-- m-my sparklings... make sure you know they're mine." You didn't even realize hat you were speaking but Grimlock clearly did, since he reacted to your possessive words with a loud keen.
The moment you finally his his ceiling node, he keened, practically hugging your helm as he overloaded hard. You weren't done with him though. You pushed him to the ground and flipped him over onto his stomach and lifted his aft up. It wasn't easy to manhandle such a big mech, but his dizzied state from his heat made it easier. When it finally hit Grimlock that he was empty, he whined and wiggled his hips a bit but you held him in place and pushed into him once more.
"Guuhh, uuhnGGH! F-fragg, HaAHH!" Grimlock let out sinful groans as your spike kept filling him up. You really were he perfect mech for him. With every thrust, you spike rammed into his ceiling node, threatening to force open his gestation seal and fucking a sparkling into him. And he would love every fucking moment of it. With every drag of your spike against his walls, he let out howls of pleasure that you were sure everyone in the Ark could hear. But by this point, you couldn't care less; you were too busy fucking the mech under you to have any shame at the moment. All you knew was that something inside of you was screaming at you to fill the dinobot up with your spike and transfluid and make sure it stayed in there. By now, Grimlock had overloaded twice, his hazy mind unsure of exactly when his second overload had hit him, yet his charge never left his frame. Still, all he wanted was for you to already overload in him, spill your transfluid into his needy hole and make him beg for even more.
When you finally overloaded into Grimlock's hungry valve, you barely even registered it, not slowing down a beat as your transfluid flooded the mech's valve. He immediately felt your transfluid hit the edges of his tank as you filled him up over and over again. When did he even open his gestation seal again? Not like i mattered anyway, because you were still pounding his valve like your life depended on it. A distant part of his mind wished that you had a knot, mod or natural. Oh how he wished you had a fat knot to shove into his tight hole and keep you inside of him so none of your transfluid would spill...
At last, you finally slowed down a bit, pushing your spike in and out of Grimlock's valve at a much steadier pace. You could feel your transfluid and his lubricants flowing past his puffy valve lips and you truly believed that Grimlock was satisfied. He had been railed so hard he nearly saw Primus himself and was absolutely stuffed full with all your transfluid. As you eventually came to a stop and began, reluctantly, withdrawing your spike from his wet heat, Grimlock let out a low whine. "N-no...don't pull out...I want more. Please." He sounded so needy and pathetic and with the way that he kept rubbing his aft back on your crotch made you unable to reject him. If Grimlock was fully aware of his pitiful behavior, he would have wanted to snuff out your spark and anyone else who could have heard the two of you. But for now, all he he knew was that you began to push your spike into him once more and he was going to be fucked full again. Probably not for the last time.
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TF Titty Headcanons Pt. 1
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❏* — warnings — sub/bottom characters(autobots) + dom/top reader + robo titties(duh) + nipple piercings + lactation + breastfeeding kink + rough sex + degradation + praise + breeding kink + heat cycles + i love giving them sappy nicknames + prowl needs his own warning
❏* — a/n — if I have to be plagued with horny thoughts then you guys will suffer too
also, I'm willing to take more requests on which characters(especially decepticons) I should do for part 2 ^-^
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➾ AUTOBOTS
✦ Optimus - As the leader of the autobots and one of the last living Primes, it shouldn't come as any surprise that Optimus is well-endowed. His tits are large and bouncy— they defy gravity in every sexy way possible. The Prime's chest is a white-ish color, plush and pillowy, a perfect to touch and perfect to cuddle.
Before becoming a Prime, his boobs were already big but now, they produce mineral-rich energon. He sometimes finds himself upgrading his chassis armor because his tits often press up on his windshields, sometimes popping his chassis armor. On rare occasions, he might even be lactating— It's very distracting, and he always gives embarrassed yet wholehearted apologies whenever his fellow autobots are met(blessed) with the sight. It might even happen that one of the decepticons he meets on the battlefield start tripping over themselves as they gawk at his chest.
Optimus lets out low, silky moans whenever his tits are fondled, his audials twitching with sensitivity. He's very open about his tits. He has no problem with his berth partners wanting to grope them, even suckle on them. If his partner wanted to, he would absolutely let them lay him out on his spinal strut just to fondle and suck on his nozzles, drawing out any energon they can find. It's a bit embarrassing for Optimus to admit, but it's not too hard for him to overload just from having his refineries played with. All Optimus needs is the feeling of having servos grabbing his plush chest and constantly rubbing his nozzles, maybe even his partner clamping their dentae down hard on his nozzle for him to let out undignified sounds and squirting all over himself.
As much as Optimus enjoys having warm servos massage his tits with care, his moans go up a pitch when his tits are bruised and left with marks from sharp dentae. Whether his partner apologizes for their rough treatment or not, they definitely knew that the Prime got a little wetter from it.
✦ Ratchet - Ratchet has huge tits and I will die on that hill. No doubt about it. Ratty's tits are a dark gray, matching his faceplate. They're big and hefty, hard for a mech of even his size to cup them fully into their hands. While he would rather die than admit it, he definitely loves to have his tits played with.
As a medic, Ratty's boobs produce much more energon than your regular cybertronian, which causes him to need to milk them often. Whenever he starts producing extra energon, it's always a pain to deal with because it leaves his poor tits swollen, nearly pressing up against his windshield, and so sensitive when he ends up leaking energon. It's so hard for him to milk his tits on his own so whenever he's at his most frustrated and sensitive state, he has to begrudgingly go to another trusted mech for help. Even though he insists on it being strictly professional, his cute whimpers and the dark blush on his face always betrays his neediness.
During the war, Ratty was definitely known for not only being the best medic Cybertron has seen, but the medic with tits that make the sweetest tasting energon. Whenever he's treating his patients, almost all of them ask if he could provide some energon for them with his generous breasts. Even though they try their best to be subtle about it(except for the most shameless mechs), Ratchet always knows their reasons, but he'll still provide it anyway because it's in his nature to help others. He just has to make sure not to get release his panel and reveal his already drooling valve during the feeding, which is going to be really tough for him.
✦ Drift/Deadlock - Drift's tits aren't the biggest but not the smallest(definitely bigger than Rodimus' though) , but there's still nothing about them that you can't not love. His protoform there is a darker color just like his faceplate, and sometimes flushes a cute pinkish color. Drifty has very sensitive tits and will let out a little squeal if they're groped too roughly. He's not too keen on showing his chest to anybot, especially when he still went by Deadlock, due to his more private nature. But when he has a partner to show them off, they are one lucky mech.
Whenever someone is mindful with how they treat Drifty's tits, massaging them softly, rubbing their digits over his nozzles with practiced care, he absolutely melts in pleasure. He lets out small eeks of pleasure while his finials twitch in response to the stimulation, his frame shivering like a turbo-rabbit . His whines and slight pouts are so attractive whenever his tits are played with. Drifty tries so hard to seem like he's unaffected but it's so hard for him to do when both his faceplate and his tits are both flushed pink with energon.
When he was known as Deadlock, even in bed, he would be known for being feisty and a little too eager to bite. But the moment servos are on his tits and slowly groping them, he gives up all resistance and tries his best to stop the little moans threatening to come out from his vocalizer. He'll still have a look that screams "make fun of me about this and the last thing you'll see will be my gun" but it'll be softened by his half-shuttered optics and and his breathy whines tumbling from his intake.
✦ Rodimus - definitely has small tits. And he is proud of them!!! He loves to show off his tits to his partners in berth and has possibly opened up his chestplate to show them off to any crewmates that flatter him enough more than once, maybe even let them cop a feel. His boobs are a white color similar to his faceplate. He has very perky nozzles and he will whimper when they're tugged on. Even though his tits are smaller than the average cybertronian's, they're still just so adorable, especially with the way his nozzles slightly flush blue when he's aroused.
Roddy knows that people are into his tits and he uses it to his advantage. Whenever Magnus is boring him to death with reports on ship maintenance or whatever, he shoves the datapad or anything that Magnus is holding in his servos, brings the huge mech's helm down to his level, and pushes his tits into Magnus' face with a cute little "ta-da!". There isn't much to push into the big mech's face but nonetheless, it's effective. He would giggle a bit and ask Mags if he liked his tits and Rodimus is left with a short-circuiting Ultra Magnus to explain to everyone. He's tried that move on Megatron too, but it's sadly not as effective on him, though the ex-warlord definitely does enjoy the view.
✦ Prowl - This praxian definitely has huge tits-- that's what his bumper is for. Now his bumper is great and Prowl definitely carries it with pride, but his titties are the real star of the show. His protoform are a dark gray compared to his faceplate. Unlike most mechs, Prowler has custom nozzle piercings: a pair of gold piercings(they cost him a mean amount of credits) and a pair of silver hoops. He switches between pairs each day. They're so big that he sometimes has a bit of trouble transforming his bumper over them. He loves to tug on them while he fingers himself silly because the pain is so delicious that even a few tugs can get his pathetic spike overloading and his messy valve squirting.
While Prowler berths very few partners, he loves to get his tits fucked by a spike big enough to reach past his cleavage and into his open mouth. Whenever his partner tugs on his nozzle piercings while fucking his tits and hisses out some degrading words, Prowl's vocalizer lets out a whoreish squeal-- he probably overloaded right then and there. Prowl for sure loves his titties. He may not be on Starscream's level of narcissism(no one can reach his level), but he sometimes like to check himself out in a mirror or camera to admire his busty chest, groping himself and gently tugging on his piercings as he begins to pant and his fans click on. It's at times like this that he often dreams about being subjected to obscenely kinky scenarios: his tits being bitten down on harshly as he's forced to continue riding his partner's monstrous length, his partner hooking up pumps to his nozzles to activate his energon lactation and leave him hooked up with multiple vibrators stuffed up his valve and aft and left overloading silly for hours, or being left in a dirty alley during his heat cycle, all his panels open while he drips energon from his tits and his pussy leaks lubricant all over the ground as he's left in a spike-hungry state, just about willing to let anyone fuck him as long as they'll ruin his pussy and fill his gestation tank with transfluid.