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cheapshrimpysheep · 1 year

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Onesie Party

SUMMARY: Ace and Deuce, with a hint from Cater and financially support from Kalim, gave you a costume made Grim onesie. And decided to throw a surprise (to only you) onesie party at Ramshackle Dorm and invite all the students you knew. Onesies were the mandatory dress code!

CHARACTERS: All NRC Students. (Leona is mentioned because, let’s face it, he would only wear a onesie if he was forced to)

TAGS: Fluf; GN Reader.

WORD COUNT: 3.780

COMMENTS: I'm new at posting here on tumblr. This is the first thing I write as a fan of something. I already read other things like this here and I enjoyed them. One night I was wearing my own onesie and got this idea. I also like to write so, why not?

I hope you enjoy reading. I did enjoy writing it.

BTW: English isn't my first language.

You were on Ramshackle Dorm. It was already late night, and you were getting ready to go to bed when you decided to make one last check at your Magicam.

You had a massage from Cater. He sent to you a post. It was a photo of someone wearing a black cat onesie with red fire in its ears.

Cater: It reminded me of Gri-Chan

Cater: they're making custom onesie!!

Cater: a Grim onesie would be so adorbs!!!!!

Cater: and you'd look so cuuute on one ;)

That made you giggle. You checked the post just to confirm what you´ve already thought.

You: They’re sooo CUTE!!!

You: I would love to have a Grim onesie but…

You: they’re so expensive :(

You: That and Grim would probably tease me about it and his ego would inflate even more -.-

Cater: hahahahaha He would do that because he would love to see you in that too XD

Cater: but yah... it's a shame it's so expensive :(

Cater: Ow... I need to go... Don't want to lose my head to be up past hours

Cater: nighty night~

You: good night ~

Little did you know Cater would tell your two dummy best friends about the onesie thing.

It was a chilly night, some days after that chat, and the sun was just a few seconds of set, when you heard a knock on the front door.

Grim smelled the air. “I smell FOOD!” he said, rushing to the door.

You hear Ace and Deuce's voices. And then you see them appear in the lounge where you were sitting on the sofa. If you were drinking something, you would have spit it out or choked on your laughter.

Besides having some bags with snacks, they were also wearing onesies. Ace had an ace of hearts onesie and Deuce had a two of spades onesie. They say that line of onesies were made based on the Queen of Hearts card soldier.

Ace was loud when he greeted you. Deuce was probably still embarrassed about the situation.

“You look so adorbs!” You said, purposely imitating Cater, and laughing. That made Deuce blush a little.

“HA ha ha. I know right?” Ace said, “But don’t think can escape from join us.”

“I would love to, but unfortunately for you, I don't have a onesie.”

“Are you sure?” Ace took out one of the things Deuce carried in one of the bags.

“OI!” Deuce protested. And Ace threw you a paper bag. Like a package that arrived in the mail. When you picked it up, you realized that by the softness, inside the bag there should be some kind of clothing.

You opened the bag while they took the snacks out of the bags and placed them on the table. And unfurling a gray onesie with a trifurcated tail, blue fire coming out of the cat ears and a black and white striped bow around the neck, which the zipper handle being a pendant.

“Don't just stand there looking at it. Go dress it before the party starts!”

“Party?! What party?!”

Ace had a mischievous smirk on his face.

“Sorry, (Y/N).” Deuce said, “I wanted to tell you, but they wanted it to be a surprise.”

“They? You mean there more people than you two who are involved in this?”

“Of course.” Ace said, “That thing was expensive. Who do you think we tricked to… I mean, who do you think offered to pay for the whole thing when he knew about it?”

You looked at him with a raised eyebrow. And someone else nocked at the door. Either it was a huge coincidence or a great timing. You put the onesie on the sofa and went to open the door.

Kalim’s greeting was as warm as always. He was wearing a red parrot onesie. He had his signature smile, until he saw your clothes.

“Oh, did we come too soon? Ace and Deuce haven’t arrived yet? I hope I didn't ruin the surprise.”

“Oh no. They are here. I just haven't put on my onesie yet.”

He sighed with relief “I got scared for a second. Then go try it one! I can’t wait to see how it looks on you!”

You smiled “Ok, I’ll go. After you enter.”

Kalim wasn't carrying anything, but the person who came in after him and greeted you had about three boxes stacked in his arms. You controlled your laughter because you knew he wouldn't like that. But Jamil looked so cute in his dark red snake onesie. You felt the need to say something.

“Don't be mad at me, but you look kinda cute on that.”

“D-don’t worry. I’m not mad” and he quickly balanced the boxes on one arm to pull the hood up to cover his blushing face with the other. “Thanks.” He whispered. That just made it worse. He was now even cuter.

You went to one of the empty rooms to change to your new onesie. When you returned to the lounge all the boys ware looking at you the same way, but Kalim was the one saying what probably all of them were thinking.

“Aw! You look so cute (Y/N)!”

“Myahaha. Looks like we find the perfect uniform for my hench-human.”

And before you could say something back, another knocks the door. You were so excited about seeing another NRC student in a cute onesie than you almost rush to the door.

OMG. Now it was Trey and Cater on a three of clubs and four of diamonds onesies. They'll tell you that the four card soldier onesies pack was on discount, so they took it. And of course, Trey brought one of his cakes. Like Deuce, Trey was a little embarrassed. But Cater...

“OGS, you look cuter that I thought! I need a pic of us (Y/N)!”

(OGS = Oh Great Seven)

They entered and after them… surprise of surprises:

“Riddle?!” It was already too late to try to sound less cooked. And he was wearing a red hedgehog onesie. “I-I didn’t thought… um…”

“Think, (Y/N), I didn't think.” He corrected you. maybe because he would anyways, or maybe to try to soften the soft blush that was already starting to form. “Well, since you always go to our unbirthday parties when invited, and sometimes even help preparing them, I thought the minimum I could do to show my appreciation was to attend to one of your parties.”

After he entered, something on the back of the onesie caught your eye. You weren't looking at that, swear! But that little round tail was so cute.

A few minutes later, new knockings on the door.

“Kalim?” You asked, “How many people did you invite?”

“Well, to be honest, I was thinking about inviting all the students at school. But Jamil said that you could not like that especially because it was a surprise party, so he suggested only invited the people you know.”

You smiled at Jamil as saying thank you.

“So I only invited… um, let me see… Jamil, Riddle, Trey, Cater, Leona, Ruggie, Jack, Azul, Jade, Floyd, Vil, Rook, Epel…”

Another knock interrupted Kalim’s list. Whoever it was from that list, it was better to open the door and fast.

Ruggie was wearing a hyena onesie. You were as happy to see him as he was to see you but... “Isn’t it a little bit… weird for you?” You asked.

“Hey! I'm a very loyal guy to my roots. Shehe.”

“That and Leona-senpai said it was either that or a lion onesie.” Jack said. He will revel to you that Leona was the one paying for Ruggie's onesie. and he wanted to buy the lion one for Ruggie, just to mess with him, but eventually Ruggie convinced him to buy the hyena one. Jack himself was wearing a dark blue onesie with little stars and little moons that glowed in the dark, what made you look confused and with a lot of questions at him.

Jack blushed. “L-listen, it's a long story. It was the only thing I had. I bought this a couple of years ago because of my little sister. I can explain it later...”

You didn’t saw anyone else with them. “Oh, what a shame Leona couldn’t come.” You say to Ruggie with a smirk on your face. Despite you really wanting to see him in a cute onesie, you know he wouldn’t do such thing.

And speaking of him, if you’re questioning why Leona would buy Ruggie a onesie just for that party. They made a deal. And Ruggie’s part of the deal was sneakily snap some pictures of your pretty figure on that cute onesie for Leona. And maybe he would save some copies to himself too.

Them entered and you saw that Ruggie’s onesie covered his entire back. So, his little tail was inside. Unlike Jack's tail, which poked out of his onesie and struggled not to wag like a happy dog’s one.

After the two of them entered the lounge, Ace started messing with Jack, and Ruggie started messing with Riddle because of they’re onesies. Nothing to make neither of them too mad, but it made you star worrying about other possible gests.

Not long after, you open the door again.

“Awww... why an azarashi-chan onesie? You should have got a Shrimp one.” Floyd whined. “Ne Jade?”

“He Floyd.” His Twin agreed “Oh, but you still look adorable on that direbeast onesie.” After Ruggie, it was no surprise seeing them on eels onesies. The funniest thing about their onesies was the feet getting out of the onesie while the tail continued a little further back.

But honestly, even more funny was Azul in front of them. Was he using an octopus onesie? Unfortunately for you, no. He was wearing a… business onesies! A onesie that looked like a suit. How did he even find one of those? You could have asked if you didn't just start laughing.

Azul looked a little upset about your laugh.

“I told you that one was stupid.” Floyd said. “You should have got a cute one.”

“I didn’t want a cute one.” Azul said back to Floyd, and then asked you: “Is there something wrong about the onesie I chose?”

“No, no.” You assured him, still giggling a little. “There’s nothing wrong with it. It’s just that I never saw a onesie liked that. I didn’t even know those existed.”

“I would rather see Azul on an octopus onesie myself as well.” Jade said with his signature smile that only the people who knew him knew it was a mocking smile.

“Absolutely not!” Azul reiterated. And as if trying to change the subject of the conversation. “Though, (Y/N), despite the preferences of my colleagues, I may say that you look wonderful in those clothes.” Oh, he tried to control the blush, but little did he know it was stronger than his wishes.

The Tweels smiled mischievously but didn’t say anything about it. Looking at them and thinking about the people that were already on the lounge, you realised something. You opened your arms in a signal for them not to enter yet.

“Wait, just… Can I please ask you something?” you opened your arms in a signal for them not to enter yet. But you quickly remember when you saw their, let's say, villainous smiles. You wanted a favor from the Fish Mafia, hum?

“Of course, prefect.” Azul said with his charming smile. “Anything you wish. You already should know that.”

There was only one thing you could use to your advantage when dealing with those three. And especially in this situation. They soften when their poor unfortunate souls are cute.

“Can you please not anger anyone? You know, teasing them about the onesies? I wanted everyone to enjoy the party.” You asked with only the necessary amount of puppy eyes.

“Anger anyone?” Floyd repeated, then smiled. “Is kingyo-chan here?”

Time to increase the puppy eyes, directed at both at Floyd and Azul. And while Azul was thinking you thought of a possible offer to Floyd. “I'll buy a shrimp onesie!”

Floyd’s smile softened and warmed. “Really~? And would you visit me with it dressed at Octavinelle whenever I ask you~?”

“Not whenever you ask.” You stood.

“And what if we set a maximum limit?” Jade said, as if that deal was of his interest as well. “Once a week maximum?”

“Once a month.”

“Twice a month” Floyd pouted.

“Fine. Twice a month maximum.”

“Okay~! What do you think Azul?”

“Um… Allow me to be the one selling the onesie to you, and we have a deal.”

You signed. “Fine.”

“It’s a deal then, my dear (Y/N). It’s always a pleasure to do them with you.”

If it makes you feel better, remember that you just made a dela with them while everyone wearing onesies. And little did Azul know he would be teased for his choice of onesie as well. At least Jamil had that to counterattack.

Next knocks on the door.

“Beauté! Oh, Trickster, your onesie is magnifique! Such clothing specially designed based on a close friend! What a wonderful show of beautiful bonds.” And Rook did it again, made you blush with his flourish. “Ah~” he whispered at you with a smile. “And of course, you could get even more beautiful.” He was wearing a light purple bear onesie.

“Rook, don’t spoil (Y/N) already with your complements.” Vil said. He was wearing a peacock onesie. He looked at you and smiled. “But I agree, it is a pretty cosy sight to behold. I even dare say you may look better than Grim himself.”

You smiled, still blushing. “Don’t say that in front of him.”

They entered and finally you see your fellow Pomefiore freshman. Epel was wearing a purple onesie with white lines with little drawings (like a Christmas onesie, but purple instead of red). But the biggest surprise was seeing him with his excited smile. You would think he from all people wouldn't like a party like this. I mean, it's kind of hard looking anything other than cute on a onesie. But he seems looking forward to the party.

“Ah! I love your onesie.” You tell him.

“Thanks! My grandma did it for me some time ago. I never had the opportunity to use it with other people wearing their own onesies too!”

“I also told him that he wouldn't need to worry about being the only one being called cute on this party.” Vil said.

“Oh! I'm eager to see what our dear schoolmates chose to wear on this night.”

“Um, Rook?” You ask before he continued followed the other two to the lounge.

“Oui?”

“I’m curious. Epel is wearing a onesie that his grandmother made. Vil is wearing, well, the animal that I most associated with him.” You giggle. “But I was wondering why you’ve chose a bear?”

He smiled at you. “I’m glad I picked your curiosity.” Rook had his, let’s say, hunter smile on his face. “Well, since you’re the host, I may tell you. You see, I always found fascinating by how a huge beast like a bear could turn into a soft and cute toy for children. Both an efficient predator and a fluffy friend. I thought it was a good fit for both the party and me. Wouldn't you agree, trickster?”

“Indeed.” you smiled, slightly worried.

Some minutes later, more knock on the door.

“HIII, prefect!” And you thought Ortho couldn't look cuter. He was wearing a magenta onesie with little horns, and with the ways he was moving you were able to glance a pointy tail behind him as well. He even changed his flames hair colour to match the onesie. “Wow! The Grim-san onesie is so cool! It looks so good on you.”

"Thank you. Your onesie is so cool too."

“Ha ha, thank you. They are from characters we really like. We thought it would be cool to matching clothes for this kind of party.”

“We? Matching?”

“And I’m already regretting that.” You heard a familiar deep voice saying somewhere outside.

“Ni-san! Come on, you said you wanted to show everyone how superior our onesies are.” Then he imitated Idia's voice. “There's no way those guys have better onesies than this. I personally upgraded mine from their standard self to accommodate my shut-in needs.”

“Fine, fine… you don't need to info-dump everything in one line of dialog.”

Instead of waiting for Idia to came out of his hiding place, you snick out your head to find him crouching to the wall close to the door.

“Heep! N-no need to jump-scare me.” He was wearing a onesie similar to Ortho’s, but his was teal, and the horns were longer than Ortho's. He was using the hoodie to hide his face, despite the long blue flames of hair that lit him. You could also see the pointy tail lying on the ground.

“Sorry.” Your eyes widened. “Your onesies are so cool! And the fact they’re matching is so adorable.”

Idia looked up at you, saw your cat ears with flames that match his own hair, and the ends of that same hair began to turn pink.

“(Y/N), could you help me convince my brother to enter the party. Please.” The please wasn't needed, he was asking you with his cute little brother's voice, and you existed heart couldn’t say no to that. That and you also wanted Idia in the party.

“Um… If I tell you some of the onesies others are wearing, would you feel more comfortable?”

“That could be considered a spoiler but… yah… If the game offers you some hint about the element of your opponent’s attacks, you’re a noob for not taking advantage of that.” And with it he at least got up. Making you be the one looking up.

“Let me see… Ace, Deuce, Trey and Cater are matching to. They’re card soldiers.”

“Um… I think I saw the pack online…”

“Riddle is a red hedgehog.”

“WHA-? Riddle-shi is here?! And on a hedgehog onesie?!”

“Right? I was as chocked as you.”

“Well, from the small sample my theory still holds.” Idia whispered with a smug smile.

“So, will you enter with me Ni-san?”

“Y-yes. I-I can go with you.”

Ortho happily thanked you and tugged his big brother by his onesie sleeve. After they entered you could see in both onesies a little pair of demon wings.

You were still waiting for someone else. But it seemed to be taking longer than the others.

“Kalim. Please tell me that you didn’t forget to invite de guys from Diasomnia.”

“I could swear I invited everyone… AH! That's what I forgot to tell Lilia in music club meeting!”

“What?! You didn’t invite them?!”

“Don’t warry, (Y/N).” Jamil said to you. “I made sure to go to the music club room after their meeting was over and I came across Lilia on the corridor. I can assure you that I informed him of the party.”

You could hug and kiss this boy right there and then and it shown on your eyes. “Oh Jamil, you’re the best!” he said it was nothing as he hid his face in his onesie's hoodie.

Despite that, you were only relieved when you finally heard another knock on the door. You open it with an expectant smile on your face and...

Nobody?

“Goodnight, (Y/N).”

“Aaaahh! Lilia!” you scold.

Lilia just did one of his popped out of nowhere upside-down things. This time appearing on the top of your door trim.

“Fuhuhu. Forgive me, but I couldn’t resist.” He said as he turned to land his feet on the floor. He was wearing a black dragon onesie, with fluffy horns and tail and a purple belly.

You looked at him, he looked at you.

“You look so cute!” you both said to each other at the same time. And while you were laugh it off, three tallest figures appeared behind Lilia.

They were all wearing the same black dragon onesies. The only exception was that Malleus' onesie didn't have the fluffy horns. Instead, there were holes on the hoodie specially made for his real horns take the place of the fake ones. He had his charming, delighted smile on. The smile he always has when he's invited for something.

“Indeed, that is certainly a flattering attire. Especially on you, Child of Man.”

“Thank you.” You smiled and blush. “Come on in! I want to see your onesies better.”

“HA!” Sebek yelled. “A human capable of understand the grandiosity of waka-sama to be willing to admire his figure in such admirable garment.” He was probably calling the onesie admirable because it was design based on the dragon form of the Thorn Fairy.

This also made a sleeping Silver standing next to Malleus wake up. He sighed. “I knew this onesie was too comfortable.” He was the last one entering the hall.

It was funny seeing Sebek so proud for using a dragon’s onesie alongside his Waka-sama. Seeing sleepy Silver on that onesie was one of the cutest sights of the night. But you also felt sorry for him because he was struggling more than usual to stay awake.

And Malleus, the warm way he was looking at you on your Grim onesie plus how cute he was on his, you suddenly felt like hugging him. He would probably like it. Sebek wouldn't.

You told them they could join the others on the lounge, and they started walking there. But you saw Malleus staying behind with you, and with a little help from Lilia, the other two didn't realise it. The moment they walked in the lounge you heard Sebek starting an argument with Ace about their onesies.

“Is something wrong, Tsunotarou?”

“Do you remember me giving you permission to touch my horns?”

“Yes.” And you already did it once or twice.

“I know they are part of your suit, but would you allow me to touch your ears?”

It took you a moment to finally answer with a wanna-be smug smile. “You can touch them, if you're willing to suffer the consequences for the audacity.” And you even dared to try to strike one of Malleus' powerful poses.

“Ha ha ha ha.” You successfully made him give you one of his genuine laughs. “Fine then. I have never been one to cowered over anything.” He got closer to you, reached out his hands and started petting your cat ears.

And while he was entertained by that, you hugged him. He widened his eyes looking down at you on his chest.

“The consequences.” You told him. What made him giggled and return the hug.

If you would like to read more from me, you can find it in my pinned post: INDEX

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