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Not-So-Innocent Dress Up

Summary:

Cosmo sometimes, for whatever reason, liked to dress up in a way that was outside of his normal hoodie and socks as an odd treat to himself. He was also starting to notice that Sprout really liked it when that happened.

Notes:

I wrote this when I was supposed to be asleep and it somehow went over 2k words so uh.. part two?

Comments and Kudos will get it faster /humor

Chapter 1: A little underwear stealing, as a treat.

Chapter Text

Sprout, despite all the time that he had struggled with his sexuality, always deep down knew he liked guys. It wasn’t hard to see really, practically everyone knew even before he accepted it himself. Especially with how he always followed Cosmo around even before he knew what being gay was. He’d do anything for the cake-roll. Stepping in the way of dangerous things, helping him with chores, even doing his laundry for him. That last thing always embarrassed the other but it was something Sprout loved doing the most for his partner.

The baker always and absolutely adored everything his boyfriend wore. He could never go a full minute without his eyes drifting to Cosmo whenever they were in the same room together. Even before they got together Sprout always had to fight the urge to stare and admire his best friend. The way Cosmo’s clothes always hugged his body due to his chubbier nature was definitely his favorite thing about the boy, his choice of outfits only furthering the problem. His signature thigh highs drew him like a moth to a flame, so it wasn’t exactly surprising to anyone when it was revealed he’d been the one to confess first.

After a fair bit of trial and error between the two in getting things to go just right, they both jumped on each other and went at it like rabbits whenever they had the chance. Although Cosmo was still a fairly shy toon, Sprout’s attention had definitely sparked a level of confidence in him that nearly everyone saw a benefit from. He was much more outgoing now, even if still attached by the hip to his boyfriend. The two kissed and cuddled and touched each other in some way probably over a hundred times a day.

Sprout had admittedly developed some jealousy of his own because of it. He’d never outright stopped Cosmo from doing anything before, although he still quietly grumbled anytime someone threw the roll a compliment or gave him a gift. His overprotective nature mixed hard with his feelings of wanting to have Cosmo all to himself, though he’d done a fair amount of work to control it, of course not wanting to accidentally hurt the baked toon in any way.

Cosmo wasn’t oblivious to this either. He was as attentive as he was sweet, both in the literal and metaphorical sense. He knew what could piss the strawberry off if he really tried hard enough, sometimes even enjoying the slight thrill of intentionally causing it. He also knew just how much the main loved seeing him dress up. Anytime he wore something out of the ordinary from his usual routine it seemed to make Sprout lose his ability to focus on anything but him within an instant.

Skirts, he had noticed, were a particular favorite of the taller toon. He’d always end up being grabbed by his plump waist or hips excessively throughout the day until the strawberry finally got him alone when he wore them. Really, as much as Sprout loved boys, he loved it even more when Cosmo dressed like a girl. It was something everyone teased him about, although he refused to actually acknowledge it. Always rolling his eyes or making a comment on something else that switched the topic.

Sprout had always been a bit of a pervert though, from sniffing his underwear to watching Cosmo touch himself, so the idea really didn’t shock his boyfriend all that much when he recognized it. In fact, realizing it for himself gave him a rush of power. He enjoyed pressing the other’s buttons while wearing some of his favorite outfits, seeing how long it’d take for the other to snap. Intentionally wearing tighter than normal shorts to make his thighs pop, spraying on some of Sprout’s favorite perfume, even stealing a shirt or two from the main to really turn up the temptation. Even just thinking about it got him dripping from excitement.

Today though, he really hadn’t meant to ignore his partner. Cosmo had become extra busy with filling out favors he’d meant to fulfill sooner, leaving him with only an hour in the morning to spend with his boyfriend before he had to run all around the facility to help out. It was a pure coincidence that he wore a small black skirt and matching tight sport shorts, along with his signature white hoodie and colorful pastel thigh highs. But it had been getting him compliments all throughout the day about his sense of fashion.

Sprout couldn’t help how his mouth watered watching Cosmo leave that morning, or how he got more and more annoyed every time someone asked if there was a special occasion for his partner to be wearing such a stunning outfit. Everytime it happened his mind screamed to just find Cosmo and teach him a lesson for going this far in teasing him. He knew he couldn’t do that though, especially because he had busied himself with baking to keep his mind off of that. It was clearly failing.

In fact he had probably over mixed the batch of cupcakes he was making in letting his thoughts simmer like that, not like he really cared though. He wasn’t baking for anything actually important. He grumbled while pulling out the tins he’d chosen for this, liners already in place from his prep work. Carefully he spooned the right amount of batter into each dish, his mind failing at not twisting the dripping slurry into something inappropriate. Fuck, he was hard again wasnt he? He’d just managed to calm himself down before baking but at least now his thick orange apron covered him fully instead of just his pants.

He did his best to ignore it just like he did the first time while slipping on his oven mitts to carefully place both stays into the already preheated oven. After double checking the time he set them to bake, he stood in the kitchen questioning what he should do. The good thing would be to clean it up while the cupcakes baked, but some part of his mind just couldn’t give up the temptation he was faced with. He could have some plausible deniability if he kept everything hidden underneath his apron. He only needed to pull his pants and boxers down a little bit to free himself. Surely there couldn’t be that much harm to come from it, right?

That’s what he kept telling himself as she slid a still gloved hand underneath his apron, carefully pressing it against himself while taking off the other. He hissed out of reaction from just how worked up he was, it would definitely be obvious without his cover. He quietly unbuckled his belt before finally slipping a thumb to pull his clothes just far enough down that his erection could pop free from its confinements. He wasted no time in wrapping his non-gloved hand around himself, using a bit of spit to have it for a bit smoother.

He bit down on the other still gloved hand, muffling his noises while unabashedly thrusting into his fist. Being caught was the furthest thing from his mind, seeing as he was in the much older diner floor that had become like a second home to him. Still he did his best to keep quiet for the slight off chance someone came down, although the idea wasn’t as stuck in his head as the overwhelming desire for pleasure. He was definitely going to get Cosmo back for this. He imagined how whiny the other was whenever he got punished. Always feigning innocence and complaining about Sprout’s unfairness.

Oh but he knew the chubby toon loved the experiences just as much as he did. Cosmo would always give out the most delicious cries of his name while getting pounded into. Sprout rarely even gave him time to take off the offending clothes, much preferring to just pull his underwear aside before shoving right into his slick hole. The toon always reeked of arousal the moment the main turned on him, as if waiting to be called out. It was such a rich and musky, even spicy, odor that made him shudder just thinking about it, drool dripping from between his attempts at quieting himself.

That was until the very toon he’d been so desperately wanting to ravage strolled in without a care in the world on his face, like a little wrapped gift from the Christmas toons themselves. His eyes hazily locked onto Cosmo, more specifically his thighs, once he noticed the other’s intrusion of the kitchen. At that point he had given up trying to keep what he was doing hidden, even if not directly exposing himself it was fairly obvious from the movement of his hand behind the apron.

“Sprout! Teagan told me you might be down here since no one has seen you all morning. I know I haven’t spent much time with you today so I wanted to-“ Cosmo stopped his whole spiel of explanation once he started actually paying attention to what the other was doing. His flushed face, how his leaves were sticking to themselves from sweat, him leaning against the counter with a hand very clearly out of sight behind the messy covering. The baked toon swallowed thickly, blushing hard while walking over to his partner.

“Wh-Why are you doing.. um.. that here?” Cosmo couldn’t bring himself to say the actual words, too focused on how unashamed the strawberry toon seemed over being caught.

“‘Cause you’ve been pissing me off all day.” Sprout only huffed while thrusting into himself faster, clearly getting off on Cosmo watching him.

“Wh-What! How? I’ve barely even spent time with you today from how busy I’ve been.”

Sprout only responded by grabbing Cosmo’s face with his free hand with just enough force to pull him into a kiss, though making sure not to force the other into it. The pastry really could care less about that however, only focusing on how Sprout tasted faintly of eggs and sugar from his bad habit of eating the batter when he wasn’t supposed to no matter how many times Cosmo scolded him about it. The kiss was heated, their tongues wrapping around one another quickly as a soft whine left the shorter one from having to strain his neck.

That got Sprout to pull back with a chuckle, mumbling out “Yeah, I know. You’ve been showing yourself off in that pretty outfit all day while I get to enjoy none of it.”

Oh, so that’s what this was about, Cosmo realized. He flushed hard at the accusation, even if he knew it was by total accident this had occurred. He tried explaining as such.

“I didn’t plan this, really. This outfit was just something I threw together last minute before I got reminded that I promised to help out a lot today..”

That only seemed to invigorate Sprout though, as he quickly picked up the chubby toon and placed him on a cleaner part of the count next to him, his hands now on either side of his hips. Cosmo’s thighs spread instinctively, allowing Sprout to slot in between them like a perfect puzzle piece. His clothes seemed so much tighter now that he was being stared down at like a piece of fresh meat.

“I could think of a couple of ways for you to make it up to me..” the taller’s breath was hot against Cosmo’s neck, making him shudder as he felt himself dripping with slick already. He quickly put his hand on Sprout’s chest however, stopping him from moving closer.

“I-I can’t, not right now, I have to help Poppy with planning a party and if I’m late you know she’ll come looking..” Each word seemed to bring pain to the toon under him, just as desperate yet unwilling to bail on his prior commitments. Sprout, although not pleased, knew his partner’s words were true as well. He’d rather not be caught like Dandy and Astro had been previously. Several times actually. He’d like them to keep that shame to themselves.

He sighed and gave a small grumble while pulling away, though an idea quickly sparked in his head and kept him from preventing the other’s retreat.

“Just give me your underwear then.”

“Wh-What?” Cosmo’s face flushed even worse now, shocked by Sprout’s request. He’d asked for Cosmo’s underwear before, but never when they were in such a public area. It embarrassed him to no end how wet he felt at the idea.

“You heard me. I want your underwear since you aren’t gonna be free until later for me to deal with you. You can keep your shorts though, just to be nice and fair.” Sprout’s voice was laced with a controlled anger, and even though Cosmo knew he’d readily back off if denied he couldn’t find it in himself to say no to the idea with how hot and bothered it got him.

Sprout’s love for his natural scent always put butterflies in his stomach, just the idea of his partner being so turned on by something as simple as smelling him made him a mess. He quickly nodded, causing Sprout’s hands to immediately dive down into taking off his shorts. The lacy white underwear he had underneath made his partner visibly shudder as he toyed with them.

“You sure you didn’t plan this out, Cossie?” Sprout teased while pressing a finger right against the man’s clit, causing the already noticeable wet spot to gush a tiny bit more. “St-Stop teasing me… I need to get back to work…” The roll only begged for mercy before his resolve to stay on plan broke. Thankfully, Sprout really was feeling generous as he moved to tug both Cosmo’s shorts and underwear off before gently putting the shorts back on with only slight difficulty from how the roll was positioned.

Sprout held his partner’s underwear like a prize in his hand, quickly raising it to his nose to take a deep inhale while making eye contact. Really, it should’ve been gross considering how sweaty Cosmo had gotten from running around all day, but he knew that just meant the strawberry would enjoy it even more. It made his mouth go dry watching as the main backed up before leaning against the island of the kitchen to start touching himself under that signature apron again.

It made Cosmo almost regret saying no, at least until Sprout snapped him out of his thoughts. “You should probably get going before Poppy starts trying to find you. Just don’t forget about our.. ‘plans’, tonight.”

He gave a short nod before carefully getting off of the counter, his legs a bit shaky from his arousal though he quickly steadied himself under Sprout’s intense gaze. “I’ll head to your room around 8, alright?”

“Works perfectly for me, baby.” That nickname was the nail in the coffin lid for Cosmo. He hurried out of the kitchen and to the elevator before he could give himself another second to think about what Sprout was going to do to him later.

He was so in for it tonight.