
-20-Bit of a nerd-Entered the Undertale fandom in January -Like to do my own research-Is a cat person(but still loves my dogs)
196 posts
Security
Security
A Mermay Prompt
Masterlist
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“Y/n?”
Startled, you spun towards the familiar voice and brandished a small shell in your hand. You weren’t expecting the voice you heard when you felt someone follow you after you left the trench.
“What do you want?” You asked, cautious but not rude.
Dream blinked at the shell and ignored it. “Easy there. I’m just here to talk. If it makes you more comfortable, I can swim a little further back. I understand your discomfort with seeing me again.”
“Can’t imagine why.” You quipped, gesturing for him to back up.
At your prompting, he moved further away from you until you were satisfied with the distance.
“Where’s your friend? Is he hiding?” You questioned, glancing around at the surrounding boulders. With the ability to change color, he could be anywhere.
“No. No, Ink is busy in one of his creating moods. I couldn’t get him to leave his work if I wanted to.” Dream smiled. “I am sorry that he scared you. That was not his nor my intention.”
You scoffed. “Speak for yourself. Ink knew what he was doing when he puffed himself up like a balloon. His intent was intimidation and it worked. Don’t speak for him when his actions contradict your words.”
Dream nodded solemnly. “You’re correct. I’m sorry. I spoke out of turn.”
He lapsed into a silence he seemed comfortable with that you did not.
“Have you met Killer, Dream?” You asked.
The seahorse siren looked confused. “I… Yes? You saw him attack me the other day. We’ve met before.”
“No, I mean, do you know Killer?”
“…I do not believe I am understanding your meaning…” Dream admitted.
You sighed. “Have you seen Killer play? Have you seen him when he’s excited? When he wants attention? When he’s playful? Have you seen his eyelights or the way his soul morphs into a heart when he’s calm? Have you seen him nuzzle into Nightmare’s tentacles when he’s sleeping? Have you heard him cheer? Have you heard him whistle through the dens just because he’s in a good mood? Have you heard his voice break when he’s overwhelmed? Have you heard him whimper when he wants a hug? Have you felt him spin around you? Bump you? Nip at your food? Have you felt his voice purr through the water while he talks? Have you met Killer?”
At your intense glare, Dream broke eye contact and glanced around at the sea floor. “…I will admit, I haven’t ever really had the time to officially meet the Killer you just described. I’ve only ever been on the receiving end of his teeth.” He winced. “Not that I gave him a reason not to attack.”
Your eyes narrowed. “Killer recognized your attacks and held back to avoid getting shot. You’ve hit him before.”
Dream looked up at you. “He… He hesitated? I didn’t feel him hesitate.” He mumbled.
“Were you paying attention to how he felt?”
The seahorse tail curled up underneath him, making him look embarrassed. “…No. I wasn’t.”
He looked so sad…
. . .
Oh my stars, you couldn’t stay mad at these sirens.
Sigh. “Why did you want to talk to me?” You reached down to pick up the net you’d dropped. It was recycle day and being a siren wasn’t going to stop you from cleaning up.
“Oh! Yes!” Dream straightened with a loving smile. “I would like to offer you my protection should you get separated from your pod. I am not asking to replace your pod or be considered more important than anyone you already know. I’m offering this as a last resort type of thing, if you can’t go to anyone else.” He tipped his head in a half-bow. “As an apology for causing you so much trouble the other day. A shrill whistle is all you need to call me.”
Oh! An apology!
“I-uh- Thank you? I’m not sure if you’ll be able to hear me if I’m too far away, though.” You pointed out.
Dream chuckled a lighthearted laugh. “I will hear you, but only if you intend to call me. Same with Ink and Nightmare.”
“You’re telling me I could have called Nightmare the other day when I was hiding from you?” You asked with a face that said; ‘really?’ It felt weird to think of the leviathan moving outside of the trench for anything. Especially with how tired he’s been.
Dream flinched at your words. “Ah. Yes. I’m glad you didn’t. Nightmare gets very… possessive. I haven’t been able to talk to Cross since he left. I…” Dream looked so very sad as he broke eye contact again. “…I made many mistakes. And I haven’t gotten the chance to apologize for them.”
Dang, what a sad, centuries old boy.
“…He talked about you the other day.” At Dream’s glance, you clarified. “Cross. He’s not mad at you. He doesn’t think it was your fault.”
A soft smile was your reward for your words. “He doesn’t?” You shook your head. “Stars.” He breathed in awe. “How is he? Is he okay? I only ever see him when we fight.”
“He’s good. His fins have a few scrapes from Killer’s frenzies but other than that, he’s been great.”
“Oh.” Dream seemed hesitant to speak before finally asking. “And… how is Killer?”
You smiled. It was nice to see him try. “Killer’s better. Nightmare helped him steady out so now he’s just excited. Like a child with too much sugar. I’m pretty sure he’ll crash when the energy wears off.”
Dream’s eyes widened. “Nightmare… what? Did… Did he absorb my magic?”
You didn’t like how scared Dream sounded. “I don’t know. I’m not a magic expert. Why? Would that hurt you?”
“No! It would hurt him!” Dream worried his tail into the sand. “Nightmare can’t have too much positivity at once, just like I can’t have too much negativity at once! Have you seen him since that happened?”
Your own eyes widened at that and your tail twitched. You forced yourself to calm down. “He was fine when I saw him. We were just chilling under the dens and they gave me a den. He didn’t seem hurt but he also seemed more tired than usual.” You fidgeted with the net and shell in your hands. “Will it get worse? Like, is he sick?”
Dream shook his head. “It shouldn’t get worse, that I know of. I don’t know if positively works different than negativity but it would only hurt for a few days as my magic would fight the negativity off. It doesn’t really get worse unless someone nearby got really upset.” He looked nervous. “He, uh… do the other sirens get excited easily?”
No hesitation. “Killer does. And the boys have been very happy and pleasant for as long as I’ve been here.” You started drifting back towards the trench. “Is there a way you got better faster? Something that helped you heal?”
Dream didn’t hesitate either. “Blue. He’s a positivity beacon. Him just being near helped me more than any magic ever could.”
You were certain Dream could see your gears turning. “Is there someone that’s always upset? Someone I could bring to help Nightmare?”
Dream flinched again. “I don’t think you’d want to meet him… He’s very aggressive.”
You nodded, determined. “Good. Then he’s angry. How do I get him to follow me?”
“Uh… you don’t. Unless you want to meet Reaper before he wants to meet you. Listen, y/n, messing with Error is the last thing you want to do. He’s the destroyer. He will kill you.” Dream sternly lectured.
“The destroyer?” You raised a brow and a smirk played on your face. You had an idea. Dream grew suspicious. “You said you knew Blue? How would I get to him?”
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More Posts from Blinddreams24
Monster under the bed.
Day 1. Dust (tbd)
Day 2. Cross
Day 3. Horror
Day 4. Killer
Day 5. Error
Day 6. Nightmare
Day 7.

These men are under yo bed-/jj
(I wish I could keep this art style GRRR)
Cave
A Mermay Prompt
Masterlist
Prev / Next
“Killer.” Nightmare’s voice rumbled through the water. You stirred from your rock at the noise. Had you dozed off? You rubbed your eyes and looked up to see Nightmare had stretched his tentacles out to surround you and the boys. For the others, they either sat on top of or under a tentacle. But the tentacle Nightmare had stretched to you only wrapped around the boulder you sat on, not quite touching you.
Wait.
Where did Horror go? You could have sworn he was there before you’d closed your eyes.
“Yes, boss~?” Killer chirruped.
Killer’s tentacle pinned him to the sea floor. Nightmare smirked as he struggled. “Be still. You’re being disruptive.” The cyan eye glanced at you. He almost sounded as tired as you.
Oh. Oh, it was because you were passing out wasn’t it?
“I’m sorry.” You yawned. “I don’t know why I’m so tired. I can go back to Cross’s den if I’m bothering you.” You stretched and lifted off your rock.
Cross shook his head at you. “Don’t go in my den, y/n. It’s not your den anymore.”
…
What?
You froze and stared at Cross’s blank expression. Was… Was Cross kicking you out? Did you do something wrong? Was it because you’d talked to Dream and Ink? Did he think you’d betray them to their enemies? You hadn’t even talked about the boys! Dream didn’t even know you were part of the group until after Killer attacked him. There wasn’t anything you could have done!
You’d only just met Dream and Ink outside of the pod and you didn’t really want to see them again. Where would you go? Where could you go?
Cross’s tentacle slapped his head. “You’re scaring them, idiot.” Nightmare scolded. “Either explain or choose your words wisely.”
Cross blushed under the appendage but didn’t push it off his face. “Sorry. Y/n, we have a surprise for you.”
Your nerves were only slightly calmed at Boss’s actions but you were still anxious. Did he just change the subject? “You do?”
“Yep. If you wait here until Horror gets back, we’ll get straight to it.” Cross yawned and the tentacle left his face, resting under his arms. “Just, wait a little bit. I promise it’s a good surprise.”
“…Okay…” You drifted back to your rock, no longer tired. He hadn’t corrected himself, so there was a chance he was actually planning on kicking you out. You didn’t have anywhere to go, even if you could go back to the land. There was nothing left for you.
You hugged yourself.
Nightmare started humming. A lullaby you weren’t familiar with. It caught your attention and you glanced up to see Nightmare’s tentacle in front of you. You glanced at the Boss but he wasn’t looking at you. The tentacle gestured at the rock you sat on, as if asking to sit next to you. Maybe his tentacles felt more comfortable off the sandy floor.
You scooted over to give it space. Without hesitation, the tentacle filled the space you just emptied, flipping suckers-up next to you like an open invitation. You looked over at where Dust and Cross laid across or hugged their offered tentacles. It seemed to be a comfort thing.
Cautious, you reached out and grabbed the tentacle similarly to how you would hold someone’s hand. It didn’t sting you or shock you or drag you away. It just wrapped around your hand in a gentle squeeze and didn’t move again.
Huh.
You shifted into a more comfortable position and yawned. This wasn’t so bad. You were safe. You were surrounded by sirens that cared. And Nightmare, despite what Dream and Ink might have said, was one of the nicest people you knew.
You hummed softly as Nightmare’s lullaby lulled you to sleep.
“Y/n?” Someone whispered. “Hey… Wake up.”
“Mmh?” You mumbled, looking up from where you were curled up. Horror’s blurry face appeared as your vision cleared. Stars, you must have slept really well if it was taking this long to wake up. “Whazzit?”
Horror grinned. “I don’t think… you should sleep… here.”
You snuggled back into the pillows. “Nooooo. And Cross kicked me out. I don’t have a den.”
“Not if… you keep hugging… Boss.”
What? Hugging-?
…
Your eyes shot open and you heard Nightmare chuckling behind Horror. You had snuggled your face into the tentacle that you had apparently started hugging some time after falling asleep.
The tentacle was immediately released. It curled playfully and drifted back to you, opening up for you to hold again.
“I’m sorry, sir.” You blushed, keeping your hands away from the appendage in favor of covering your face.
“It is quite alright. You needed it more than I did.” He chuckled, still behind a smiling Horror. “Also, you do not need to call me sir or boss. Those are nicknames, not titles. Call me what you want.”
“Yes, sir.” Where was everyone?
He chuckled as Horror reached forward to touch the rock you were on. “You… ready?”
Ready? “For what?”
His grin split his face. “Surprise~.”
Oh, yeah. Cross said something about a surprise.
“Oh! Uh… do I need to… get ready?” You asked, uncertain. Did they want to kick you out? Were they throwing a party? What was going on?
Horror shook his head. “We can… go see it now.”
‘See it.’ Okay. So it was a gift or something.
“Okay. Um. Let’s go then, I guess.” You weren’t the most enthusiastic, but Horror seemed happy, so you would follow him.
He happily led you into the trench, past everyone else’s dens and in the darkness. The darkness of the trench was weird. You should logically be able to see in the depths(you’d gained night vision when you converted) but you could never make anything out unless Nightmare told you to look at something. It never felt malicious though. You just avoided swimming into the darkness without a guide.
Speaking of guides, Horror offered you a hand to hold as he guided you into the deep. You obviously accepted. You weren’t about to follow him on sight alone.
“Horror, where are we going?” You asked, testing the waters.
“Almost… there.” Was all Horror offered in response. He continued to pull you in a firm but gentle grip. So gentle, that you knew you could break away if you wanted to. He wasn’t forcing you to follow him and was giving you every opportunity to back out.
You followed, encouraged by that fact.
“Watch… your head.” He gently guided you into what felt vaguely like a cave. You weren’t sure. “We’re here.”
“Ok.” Came Cross’s voice from in front of you, making you flinch. “Boss?”
The darkness suddenly vanished and you blinked. You were in a cave, not quite as big as Cross’s den but definitely spacious. Cross had stuffed himself in the space that was small for him and Killer vibrated next to him. When you turned to Horror, you saw Dust halfway in the cave and Nightmare’s glowing eye and grin outside.
The cave was decorated. Little bits of coral, shells, and nets were strewn about in the corners and cubbies of the cave, giving it all the homey feeling of a seaside house. What stood out to you though was the red ringing frisbee tucked against a bed of sea weed.
“Surprise!” Killer cheered.
You blinked again slowly. “Oh. Uh. I… I don’t understand…” You admitted, embarrassed.
Dust and Nightmare chuckled softly as Cross spoke up. “This is all yours. We figured you might want your own den so we tried to make it as comfortable as possible. Feel free to move things around, get rid of whatever, and add stuff. It’s all up to you.” The orca siren smiled at you.
Did you hear that right? “I- You- This is for me?”
Killer’s expression turned sarcastic. “Nah, it’s for the frisbee.”
“Yes, it’s for you.” Cross shot Killer a dirty look. “If you don’t like it, we can-.”
“I love it.” You grinned. “Oh my stars! I love it! Thank you!” You shot forward and hugged Cross. Cross, shocked for a moment, laughed and returned the hug.
“Hey! …whataboutme?” Killer whimpered.
You laughed and broke away from Cross to hug Killer. Killer grinned and immediately squeezed you, laughing when you squeezed back.
“…So are we all getting hugs or…?” Dust asked. Horror looked like a kicked puppy as he watched you hug the shark siren.
And so everyone got hugs. Because you knew Dust was fine with waiting, you hugged Horror next. He was very careful, keeping his grip loose and his tentacles suckered firmly to the cave floor so he wouldn’t grab at you.
Dust gave you a normal looking hug, as if you were passing friends that saw each other all the time. But you could feel how his strength twitched to squeeze you. From what you could tell, he was probably stronger physically than any of the other boys.
It was a good thing he acted the most mature and self controlled. Oh my stars, he could crush you with his hands.
Before anyone could figure out what you were doing, you shot out of the cave and collided with a leviathan’s shoulder, hugging Nightmare too.
“Thank you! All of you!” You whistled excitedly. “I thought you were kicking me out of the pod!”
Killer burst into laughter.
“No! Y/n, we would never!” Cross gasped, clearly not realizing how he’d phrased his words earlier.
Strong yet gentle pressure pressed against your back as Nightmare hugged you with his hand. “You’re very welcome, little one. Though, it was Horror’s idea.” Nightmare’s chest vibrated deeply as he spoke.
“Thank you, Horror!” You called, still hugging Nightmare. He was too big! You had to give him a hug to do his size justice!
“Mm… you’re welcome, y/n.” Horror said proudly.
The rest of the next hour was spent constantly thanking everyone and fawning over every little detail in the den. Your den.
You swam full force into the bed at one point and stopped moving.
Cross, worried, peeked back into the cave. “Y/n?”
You didn’t answer and Nightmare chuckled.
“They have spent their energy. Let them sleep.”
“Oh.” Cross whispered as you melted into the seaweed, already unconscious. “Okay.” He slowly turned and swam away so he wouldn’t move the water enough to disturb you.
Dust and Horror followed Cross out of the den and back to their own dens.
Nightmare turned back to your new den.
“…Killer.”
“Coming!” Killer shot away from the nets in the corner and down the trench.

Reblog if you think it’s okay to platonically say “I Love You” to your friends
Hello boys!! Who's more likely to get their heart squeezed by how cute Bean is? :3
Literally or figuratively?

Cause either way it’s Killer
(I’m sorry I took so long to answer this! I colored it for you to make up for it!)