lowkey got hooked when you did that seoksoon prompt so maybe it'd be nice to see the oblivious weight gain hit seokmin like a truck and he only realizes it after breaking open his pants after a meal and soonyoung is definitely going to like enjoy teasing him as revenge even if he's only gotten heavier since
hello thank you for my first request since my hiatus it’s an honor to fulfil brainworms 🤓 especially with these two as the pairing hehe
i Loved getting this bc !! mutual gaining !! yay! hope you enjoy it <3
(to anyone reading this a stand-alone, it’s actually a sequence to this prompt/ficlet)
having a chubby boyfriend wasn’t on any of seokmin’s particular list of wants when he pictured a partner by his side. don’t get this wrong, though, since he actually never thought about any specific figure, much less a specific person before he met soonyoung. the adjective in question, however, is having a bigger impact than he’s ever dreamed on his relationship—in a good, crazy-driving-way, of course, with a focus on the big aspects of the whole scenario.
soonyoung has only gained more weight since the night he realised his pants were giving up on his stupid ass, seokmin has only used more and more of his dick these days as he couldn’t seem to stop getting enough of a well filled-out soonyoung.
(it’s like he was trying to knock the poor boy up, seriously. it didn’t help that one time soonyoung mentioned this and seokmin went completely nuts, having too much material on his hands with soonyoung’s round belly...)
so, having a chubby s/o wasn’t on his list of requirements, but now he thinks he wouldn’t have any other way. specially as he got to witness every little change on his boyfriend’s body, that now took much more space everywhere, the fluffiness impossible to hide.
the thighs, for fuck’s sake… seokmin thinks he could die crushed by them.
that morning, an image that became periodic in that apartment caught his eyes when he was about to enter their shared bathroom. soonyoung is planted on the scale, brows furrowed as he tried to find a way to check which numbers were on the screen—he could no longer suck his gut out of his vision, apparently.
ignoring the twitch of his cock in favour of being annoying, seokmin walks silently and puts half of his foot in the space between soonyoung’s feet, pressing it down in order to make the numbers go up.
“uh? how is this…” as soonyoung leaves the position and seokmin’s quick to step off, careful to stay behind him, his crescent-moon eyes go wide in surprise.
“what? did it break already?” seokmin’s voice comes next to soonyoung’s shoulders, provoking as always. the latter almost jumped on spot.
“oh my god, fuck off! i almost fainted!” he slaps him in retaliation, although the jolting movement of all of his “extras” only make seokmin smile more.
he’s having the time of his life kissing soonyoung’s pout away while he gropes his sides, the soft flesh flexible like dough under his hands.
“sorry, it’s just so cute when you don’t know what’s happening while deep down you really want that weight on you…” seokmin explains his actions, giving soonyoung’s belly a few gentle taps.
soonyoung gasps.
“w-what, who said i want that?”
“you don’t need to verbally communicate, your panic says it all.”
“i hate you,” he complains, lightly pushing seokmin away. with the touch, soonyoung notices how his fingers sinked more than usual, seokmin’s chest definitely more cushioned than he remembers. interesting.
“no you don’t,” seokmin retorts meanwhile soonyoung’s busy checking out his frame, gaze attentive to how the pyjama shorts hugged his thighs in a way that it certainly didn’t before. “wanna reserve this friday for a stuffing? it’s been a while since we did that, right?”
the option runned through soonyoung’s head while he rest his hand on seokmin’s hip. it was… softer than before? a gentle squeeze was gave on the spot as a thought formed in his mind, bright and alluring.
“actually…” he says, letting digits press on seokmin’s waist. it’s delightful how they knead the supple flesh. “i think i’m ok for now. we can have a watch party, though. we really need to catch up on that mexican drama we said we’d wait for the episodes to pile up, remember?”
“oh, right! that sounds good.” soonyoung nods just to reassure it, even though his focus is long lost in the new revelation under his palms. seokmin offers, “but do you want anything special to eat? to compensate for my awful behaviour of scaring you…” he singsongs in a mock.
soonyoung grins, unbothered by the teasing and knowing exactly what to choose in order to confirm his suppositions.
“no. pizza’s fine.”
***
friday comes after a very stressful week, so seokmin doesn’t mind keeping his work clothes on as he proceeds to open a beer and text soonyoung that he’s already at home. they usually get 10 minutes before or after one another, so it’ll probably be a short wait.
seokmin frees three buttons of his shirt as he heads to open the windows to make the breeze circulate. it’s hot today, and thank god he still got a few more beers left in the fridge in case soonyoung takes longer than expected to arrive.
he continues to get comfortable in spite of the formal dressing, tie being discarded on a chair and shirt untucked from his pants. the belt is unbuckled along a sigh of relief, the pressure of a whole day in and out of meetings seeming to dissipate with the action. seokmin adjusts the tight fabric of the bottom clothes, still, tugging it in an attempt to feel less trapped. if he was in one of his moods, it’d already be gone, but since the night was settled on a watch party, he didn’t wanna appear too horny.
he sits down on the sofa, not seeming to notice how his body sinks further in the cushion, takes a generous gulp of the beer can, and waits.
***
seokmin is on his second can and finishing a bag of chips when soonyoung arrives, three large pizza boxes stacked on his hands.
“hellooo,” he greets, getting rid of his shoes before stepping into the apartment. “me and the pizzas are home!”
“wow, what a perfect timing,” seokmin comments as he gets up, a small grunt leaving his lips due to the effort after having sat back so comfortably.
“isn’t it?” soonyoung grins, knowing the two of them would get grumpy if they had to wait for the order still. it seemed a good idea to get their dinner on the way.
seokmin gives him a gentle peck, helping with the pizza boxes as soonyoung analyzed the small table—not as empty as he generally found.
“were you already snacking without me?” he narrowed his eyes, grabbing the empty chip bag as if presenting evidence.
“hm, yeah? you know i can’t drink on an empty stomach, it makes me dizzy,” seokmin mumbles, apparently not mindful of the curious stare he was receiving.
soonyoung’s brain is instantly alarmed by the observation, fighting back a smile as he looks at his boyfriend’s bloated middle, more than obvious when he bents to organize the pizzas.
“right.” soonyoung licks his lips, not strong enough to stop himself from slapping seokmin’s ass just to feel it jiggling. damn.
“hey!” seokmin yelps, meeting soonyoung’s mischievous expression when he straightens up. “what’s this now, didn’t we agree on a drama night?”
“am i not allowed to have fun anymore?” soonyoung feigns a shocked face, palm at his chest.
seokmin shoves him playfully, holding out his hand next to invite him to sit down.
“yeah, of course…” he says before reaching out to grab a slice, wasting no time in biting it almost in half.
and to think soonyoung is the one being teased for his eating habits all the time…
maybe it was time someone got conscious of their acquired manners as well.
***
soonyoung thinks this is the most self-control he’s had for months, but it doesn’t hurt as he thought it would. the holding back doesn’t seem too bad, although he spent the day taking it easy on his meals. after all, it is for a good cause. he’s now more than sure seokmin didn’t enjoy his gain as a merely passive watcher. he, too, spilled as they sat, both from the sides and from the front, stomach a protruding roundness that only drew more attention as he finished the second beer in small sips.
seokmin didn't have soonyoung's somewhat desperate way of eating, but he had a surprising ability to stuff food in his mouth. it was an entertainment, a private show, watching him devour his favourite dish in big bites that left his cheeks full for almost a whole minute.
soonyoung took advantage of his distraction with the series running on the tv (as well as with the absurd amount of cheese he swallowed each time) to revisit the places that caught his attention throughout the week—the thick thighs that doubled in size when he sat down, the arms that gained a layer of fat on top of the muscle he built at the gym he went to three days a week. maybe that could have slowed down the gain at first, but it wasn’t able to do a miracle in the face of mindlessly snacking during the day with the excuse of filling up soonyoung.
thighs, arms, belly, cute cheeks to match soonyoung’s. his ass was on another level, certainly giving him more comfort to stay seated for hours if he wanted to.
and the fucking pants. soonyoung revels in the thought that this might come full circle in a short time, because soon that poor fabric isn’t gonna stretch more to accommodate his boyfriend’s indulgences.
“hey, is there still pepperoni left?” he asks, partly to mask his embarrassing enthusiasm, and a little to see seokmin’s roundness showing again as he leans for a slice.
“hm, i think we ate it all, but let me see.”
soon came, well, sooner than soonyoung had expected. as seokmin surges forward, he lets out an audible groan, which is accompanied by an also audible rip.
if soonyoung had cat-like ears, they’d be up and moving at the moment.
“what was that?”
“what,” seokmin parrots, slowly dropping the slice in its box while he moves back to sit properly and inspect the presumed damage.
“oh my god,” soonyoung spits out as he watches seokmin’s hands travel to his own middle, lifting his shirt just enough to understand what happened. in case seokmin himself didn’t get it, soonyoung exclaims like a kid who won a brand new toy, “you tore open your work pants!”
“no i– i didn’t, i–” it’s useless. he did. and there’s no time to comprehend the extent of his humiliation.
in a blink, soonyoung is all over him, pinning him to the sofa in a trap with no escape (he had the weight advantage, in the end). his thighs settle on seokmin’s lap without mercy, eliciting a grunt out of him.
“s-soonyoung, wait,” seokmin pleads, the fullness of his belly much more heavy in that position. it’s mortifying.
and soonyoung isn’t kind.
“wait for what? you don’t want me to see how fat you’ve gotten?”
it’s like the air is sucked out of seokmin’s lungs, his insides burning in a mix of shame and awkward arousal.
“shut up, you’re the one to talk,” he tries to quip, feeling ridiculous to be downgraded by someone who’s up his size by a considerable amount of pounds.
“yeah, i’m the one to talk, because at least i’m aware of it,” soonyoung bites back, lifting seokmin’s shirt to finally reveal the chubbiness that had taken over a defined abdomen. he bites his lower lip, entranced. “look at this, how did you manage to hide it from me, huh?”
“i didn’t hide anything!” seokmin squirms, hating that he’s somehow enjoying the attention. “there’s nothing to hide.”
“of course there’s nothing to hide,” soonyoung responds like he’s sputtering facts. “you have a lot to show now, actually.”
seokmin mutters a shut up, breathless both due to the shame of being so blatantly teased by his boyfriend and to the rich meal stuffing him.
it doesn’t help that soonyoung has landed his salient tummy exactly where his dick is starting to tent, and neither does the satisfying sensation of small, cute fingers feeling him up as they please.
the question that leaves soonyoung’s mouth is shoot without further thought, “can i feed you?”
seokmin chuckles, unsure if out of disbelief or nervousness.
“you’re really into this roles reversed thing, aren’t you?”
“it’s just that now i see why you got so eager to fatten me up…” he pouts, almost convincing with the innocent facade he puts on. seokmin swallows a moan when a squeeze pinches his flanks. “so much more to grab, ah,” soonyoung is caught by surprise when two palms land on his ass, making him screech. he smirks as seokmin encourages him to move, pressing him against his hard-on. two can play that game, right? “more seokminnie for me,” he whines, smushing his belly against seokmin’s.
“don’t get too excited, i’m not gonna let myself go like you,” seokmin warns in between a grunt, grasping soonyoung’s butt with fierce to let him know he can yet take control.
“right. keep telling yourself that.” soonyoung rolls his eyes, wiggling his hips just to be a tease before getting up to bring the small table closer, one hand resting at seokmin’s tummy to keep him in place. a slice in his hold, he plops on seokmin’s lap again. “we’ll soon be sharing clothes.”
seokmin snickers in disdain.
“you wish. enjoy this feeding session, ‘cause it’s gonna be the last.”
soonyoung bites his lower lip, knowing at his core that no, it wouldn’t. his boyfriend was just a stubborn asshole when he wanted to, but soonyoung could be much more stubborn.
“if you say so… now open up, baby. let’s see what more can this belly fit now that it’s free from evil buttons, hm?”
after a long sigh, seokmin obeys. somehow, he knows he’s wrong—this isn’t gonna be the last; not when being fed by your boyfriend feels so fucking good.











