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the first time jimin does it, he knows it’s not exactly the most morally right thing to do. he also knows how much jungkook loves being marked, loves it that much more when it’s jimin’s piss and not his come. so when jimin gets home late, having been at the bar with his friends, he can’t resist the nagging in his gut that tells him to claim.
he’d taken a cab home, glad that he hadn’t driven to the bar in the first place so he won’t need to pick up his car later; this means he’s way past the level of drunk he usually gets, stumbling down the hallway to their bedroom. he unbuckles his belt as he crosses the threshold, cursing softly when he stumbles into the door frame, banging his arm hard. jungkook stirs, making a muffled attempt at speech before clearly passing back out again, and jimin feels so much love for his cute boyfriend.
jimin strips out of his clothes, ready to climb in beside jungkook and force the younger to be his big spoon, but his full bladder is impossible to ignore; he kisses jungkook on the forehead with a slurred whisper of “i’ll be back t’ cuddle, babe, jus’ hol’ on,” then turns to retreat to the toilet, not expecting his foot to have made friends with the comforter that’s trailing on the floor. he falls, pulling the blanket along with him, and is grateful that he manages to catch himself on his forearms, no real damage done.
standing up again, he tries to straighten out the blanket to cover his boyfriend back up, but then he sees it: jungkook is completely naked. he’s laying on top of a spread out bath towel, seeming to have fallen asleep after his shower, before he could get dressed. his cock is impossible to ignore, small and adorable and jimin reaches out to touch, wanting to make jungkook feel good, but he stops himself when his bladder takes his attention again.
“fuck,” jimin murmurs. he doesn’t want to leave the absolutely gorgeous sight of his nude boyfriend—all soft and sleep warm and pretty—but knows that if he doesn’t reach the toilet now, he’s going to end up pissing all over jungkook.
and oh, does that sound like a good idea.
he wouldn’t even need to worry about the mess, the towel under jungkook’s ass perfectly placed to allow for any urine that doesn’t soak into his skin to be caught in the terrycloth instead. it would be the perfect intersection of all of their shared kinks, but it’s not something they’ve discussed before, not even something jimin has thought about, if he’s being honest. but the alcohol his brain is soaking in makes him ignore his concerns, allowing him to stumble a step closer to the bed, aiming his cock toward jungkook’s exposed, soft dick, and letting go.
the moment the stream hits him, jungkook twitches; his body knows something’s happening, even if his mind doesn’t. jimin worries that he’ll move off the towel and make a huge mess, but he just brings a hand up to rest on his stomach, fingers crooking like they’re attempting to touch, but not understanding how to do so. jimin manages to get lost in his head as he keeps pissing, trailing liquid along jungkook’s groin then into the dip of his bellybutton, watching as it pools then overflows. he traces lines on the younger’s thighs, the shine of the moonlight coming in through the window against the dampness beautiful.
jimin is disappointed when he can tell he’s almost done, doesn’t want to stop covering his oblivious boyfriend in his scent, so he changes his aim. he points at jungkook’s pecs, hitting his nipples dead on and smirking when jungkook sighs out in his sleep. he’s a little worried about piss dripping off his chest as it rises and falls, but it’s not what he cares most about, not when jungkook now is so thoroughly jimin’s.
he finishes, shaking off his dick over jungkook’s lips, heart racing when his boyfriend instinctively licks them at the feeling of moisture. he keeps jungkook uncovered, going to take his own shower in the hopes that all of his piss will have soaked in by the time he gets back.
—
waking up the next morning, jimin feels so much guilt, it’s almost suffocating. but jungkook rolls over, pulls him in for a kiss, and murmurs against jimin’s lips, “g’morning, hyung. didya have fun last night? i don’t remember you coming home, but that might be because i was having an amazing dream and didn’t wanna wake up.”
jimin laughs nervously. “what kind of dream?”
jungkook echoes the laugh, then stretches. “was gettin’ all marked up by you, felt so good. we haven’t done it in a while, we should plan for that kind of play again soon.” and there goes jimin’s guilt, excitement replacing it at the thought of jungkook having enjoyed himself too, even if he didn’t realize it at the time.
“of course, baby, that sounds hot,” he agrees, leaning forward and licking into jungkook’s mouth, already planning how he can cover jungkook in his piss again without him knowing.
—
jimin is not as drunk the next time it happens, but he’s tipsy enough that he manages to shove down the voice in his head that tells him to stop.
jungkook isn’t naked this time, but he knows his boyfriend is a deep enough sleeper that he can strip him of his boxers without jungkook even stirring. he gets undressed, throwing his outfit in the general direction of their overflowing hamper, then starts slowly working jungkook’s boxers down his legs, pausing every time the younger seems like he might wake up. it takes longer than he wants it to, making him think about convincing jungkook that they need to start sleeping naked, but that’s a problem for sober jimin.
once he has them removed, he steps close to the head of the bed, deciding to work his way down this time, wanting to start where the scent will be something jungkook will notice when he wakes up. with a glance at jungkook’s now prone body, he sighs, letting go right onto the younger’s chest.
the stream stays strong enough that he feels nervous risking accidentally waterboarding his boyfriend, so he lets it trail past his abdomen, watching it flow gracefully over jungkook’s thick thighs. when it gets light enough that he knows the pressure will be negligible, he moves his dick back up so it’s spraying onto jungkook’s neck.
“fuck,” he breathes out.
the younger seems to recognize something is happening right around the time jimin finishes up, so he darts out of the room to brush his teeth before jungkook can spot him standing above the bed.
jungkook shakes him awake the next morning, a confused look on his face as he stares down at a drowsy jimin. “hyung, why it the bed damp?”
jimin manages to think fast, forcing a bashful look at he replies. “i accidentally spilled some water. i thought it’d dry up quickly enough, but i’ll wash the sheets today anyway. sorry, kookie.” the confusion clears from jungkook's face and he smiles, kissing jimin deeply enough to make the older once again forget his guilt.
—
coming home late from work usually means that jimin will collapse into jungkook’s arms right away upon returning home, but jungkook has once again fallen asleep naked and jimin realizes he’s only so strong. he doesn’t have the excuse of alcohol in his system this time, stone cold sober and guilt a lot more noticeable as it tries to shame him out of his plans, but as he stares down at his boyfriend’s soft cock, he knows he’s going to do it again.
having the memory clear in his brain is much better than he thought it would be, so despite knowing that he’s being a creep, when he jerks off in the shower after drenching a sleeping jungkook in a day’s worth of urine, he’s already planning when he’s going to do it again.
—
it becomes a habit; whenever jimin gets home and finds jungkook passed out naked, he pisses all over him before retreating to the shower to get himself off. the days when he’s sober are better because he remembers the experience more clearly, but being drunk doesn’t stop him from marking up jungkook, anyway. his favorite part quickly becomes when he’s close to being done, his dick spitting out little more than a spray of droplets, and he changes his aim to let it sprinkle onto jungkook’s lips. most nights, the younger licks everything up, sleepily sighing with satisfaction that goes straight to jimin’s dick.
it’s on a normal night, some months into his escapades, that when he turns to sprinkle it on jungkook’s lips, he freezes in fear.
“hyung?”
jungkook’s looking up at him, confusion in every line of his face. jimin doesn’t know what to say, doesn’t know what to do, but when his brain kickstarts again after a moment of pure shock, he splutters. “shit, shit, shit, i’m sorry, i’m—”
he’s trying to get his bladder to stop when jungkook moans, reaching up to line up the stream with his mouth and letting the last bit fall onto his tongue. “why didn’t you wake me up?” he pants out, reaching forward to push jimin so he’s laying back on the bed, terrified as jungkook climbs over him. “‘ve been wondering why my dreams were all about this, why i keep waking up wet. smell like you all day, hyung, feel so owned.”
“aren’t you mad i’ve been doing it, though?” jimin asks, stunned, but jungkook just pouts.
“annoyed you’ve been having all the fun without me, but ‘m not mad.” he leans over jimin’s prone body, ducking down to take his soft cock into his mouth, tongue sliding under the foreskin when he attempts to lick up the last drops of piss. “c’mon, hyung, get hard. you got me all worked up, wanna be fucked.”
it’s hard to concentrate when jungkook seems set on sucking his dick back into hardness, but jimin can’t hold back from figuring out why jungkook is so okay with everything. “bun, we should talk about this.”
the younger whines, pulling away to pout up at jimin. “we can later. i liked that you used me for your own pleasure, makes me feel all hot and bothered. ‘nd you would’ve stopped if i’d asked, i know you would’ve.” he seems to decide that’s enough talking, curling over jimin again to go back to nursing his dick.
jimin groans, bucking up; his dick is getting harder and there’s nothing he wants more than to make his boyfriend cry from pleasure. “gonna let hyung make you even more messy, baby?” jungkook nods as best as he can with jimin’s dick still in his mouth, the warm suction he’s providing feeling like heaven. when jungkook pulls off, sitting upright to be able to move them around, jimin’s eyes lock onto the glistening of his torso, spots still wet with piss. “god, you’re pretty. wearing me around so everyone knows you’re mine.”
jungkook lays down, hand moving almost instinctively to pinch at his own nipple, and jimin watches him in awe. he feels a little bit of that guilt come back, but jungkook’s pleading eyes make him shove it back, reminding himself that they need to have a real conversation later, after they’re both sated. he brings a hand down to tease at jungkook’s hole, wanting to work him up before he puts in the actual effort to get him prepared for the stretch of a dick, but he’s thrown off by the wet stickiness of lube already coating between jungkook’s cheeks. jimin pulls his hand away, holding it up so jungkook can see when he makes a noise of confusion. “oh, that. i missed you and fucked myself in the shower before bed. ‘s why i wasn’t dressed, i was too tired to bother.”
the thought, while hotter than hell, prods at the parts of jimin’s brain that process more complex thoughts; he can’t figure out why it feels so important, but he motions for jungkook to grab the bottle of lube to make sure he's stretched enough. he’s working three fingers into jungkook’s hole when it all slots together. “wait. jungkookie.” jungkook whines, wiggling his hips to get jimin to keep moving while he talks, and he obliges, adding a fourth finger as he continues. “is that why you’ve been naked in bed recently?”
jungkook’s open mouth closes, his teeth clicking together. his cheeks go red, and the way he looks away from jimin is answer enough; jimin quirks an eyebrow, bending his fingers to press into jungkook’s prostate to make him whimper in his throat. “c’mon, baby, answer hyung.”
“hng, fuck, i was hoping you’d figure it out yourself, hyung,” he whines, squirming around on the bed. “got myself ready for you, hoped you’d fuck me awake.” jimin imagines it, realizes that if his rabid brain hadn’t gone straight to urinating onto jungkook, he probably would’ve got with the plan sooner rather than later. he pulls his fingers out, ignoring jungkook’s noise of discontent, then slicks his cock, wasting no time in pushing into jungkook’s ass.
“if you do it again, baby, hyung will do what you want. would love to stick my dick into your pretty butt, all nice and relaxed while you sleep.” he pulls away to thrust back in, basking in the heat of jungkook’s body.
“only if you—” jungkook stutters when jimin changes the angle of the slide in, both hands tweaking the nubs on his chest and head throwing back. “only if you piss on me, before you fuck me.” he moans loudly when jimin grabs his dick, working to pump him to completion since he can feel his own orgasm drawing closer. “wan’ you to fall asleep inside me, covered in your piss so when i wake up i know you’ve used me.”
jimin groans, so absorbed in the picture jungkook is painting that he doesn’t even realize the younger is about to come, not until there’s suddenly white all over his hand. he strokes jungkook through it, losing himself in the motions that are timed perfectly with those of his hips as he fucks mindlessly into jungkook. the younger whines, clearly sensitive, but he doesn’t tell jimin to stop touching his cock, so he keeps going. “just a little more, baby, almost done.”
“jimin!” jungkook cries out, and before he can ask what’s happening, jungkook’s dick is spurting out piss. it sprays onto his torso, all over jimin’s hand, and his jaw drops at the sight of jungkook unable to regain control over his bladder. he’s even more shocked—and aroused, he can’t even pretend otherwise—when jungkook’s hand leaves his nipple and reaches down to push jimin’s hand so his still pissing dick is aimed up at jimin’s chest instead.
“oh, fuck,” jimin grunts out, coming into jungkook’s body as he lets his boyfriend drench him everywhere he can reach.
“gonna make you just as wet, hyung,” jungkook sighs out, starting to go boneless now that jimin’s stopped pushing him up the mattress. “we’ll match.”
the idea of jungkook returning the favor is just as hot as it is endearing, and jimin has to pull out before his dick can attempt to fill up again. when jungkook finally finishes, he pulls jimin onto his chest, holding him close; when jimin tries to get up to wash off the urine, jungkook just holds tighter. “koo, i’ve gotta get us cleaned up.”
it makes jungkook snort, pinching at jimin’s cheek like he’s an old aunt or something. “i don’t care. i’m not mad, but i never said i wasn’t getting revenge. you chose to not tell me you’ve been fulfilling one of my wet dreams, and that's just rude.”
“but bun—”
jungkook shakes his head, smile on his face. “nope, don’t care. you’ve pissed in your bed, now lay in it.”
jimin just laughs. “i don’t think that’s how the expression goes, baby.”
the only response he gets is a tightening of the arms around him and a kiss to the top of his head, jungkook uttering an “i love you” that makes jimin relax into the embrace. the last thing to go through his mind before he falls asleep is that they need to invest in a waterproof mattress pad, and soon.