Chapter Text
Jungkook dreams that he’s getting fucked. He’s lying on something soft and getting pushed up rhythmically into the pillows. He’s so wet and hot and whatever is in him isn’t enough. He’s too loose, he can barely feel it at all. In the haze between asleep and awake he clenches down, trying to make himself tighter, and he wakes up on his back with Seokjin between his legs. His tentacles rub in between his legs and tease his holes.
“Morning, baby. Having a good dream?”
“Hh,” Jungkook manages. He thinks for a wild second that Seokjin read his mind, can tell exactly what he was dreaming about. Then all thoughts fly from his head as a tentacle pushes into where he’s wet. The sound he tries to make gets stuck in his throat and turns into a strangled whimper.
Last night Seokjin lured him further into his ship with promises of his shower, which was only about the size of a closet but had hot water. Jungkook stepped out feeling liquid from the waist down and from there it was easy to fall into Seokjin’s bed. The mattress nearly filled up the entire cabin and Jungkook sprawled over it in just his shirt, burying his face in the pillow. The whole ship had a strange but pleasant scent, like warm laundry.
Seokjin took his own shower and bustled around the small ship for a while afterwards, and Jungkook fell asleep before he felt him get in bed next to him. But he must have.
“Sore?”
He is. But he’s so wet, or Seokjin’s tentacle is so wet, that the slide in is easy and the burn feels good.
One tentacle thins out and circles his thigh, sucking ring-sized marks into his skin over the ones from last night. The third ghosts down to his ass, rubbing over it and coating him in the weird slick it produces.
"Oh, fuck," he whispers. He clutches at the sheets and pushes his hips up and away, impaling himself further on the tentacle already inside him.
"Hurts there too?"
Jungkook nods. "I don't think— I can't—"
The tentacle's tip moves away from his ass but it's not dissuaded from seeking out heat and it wiggles up against Jungkook's rim where it clutches at the tentacle already in him.
Jungkook's back arches sharply up from the bed. "Ah—!"
It's too much, he thinks. He's still waking up, a kind of lazy fog in his mind that's pierced by a shard of panic. I can't take it.
Seokjin pulls both tentacles back and leans down. His breath smells fresh. He must have gotten up to brush his teeth before he started—fuck, started touching Jungkook. Rolled him onto his back, spread his legs, and found Jungkook naked below the waist and bare to him. Exposed for Seokjin to touch and rile up and get dripping before he even woke up—
He presses a wet kiss to Jungkook's ear. "Don't worry. I opened you up yesterday. Your body's ready for me."
If it wasn't for the fact that two tentacles absolutely fit yesterday, Jungkook wouldn't believe him. But they did and Jungkook can't stop thinking about how it felt to come around both of them—around all three of them.
He blinks the last of sleep from his eyes and locks eyes with Seokjin. "Go slow."
He feels Seokjin nod against his temple and pull back almost completely. He runs his hands down Jungkook's thighs and hikes each one up over his hips, spreading him wide. The texture on his tentacles rubs against his rim. Jungkook licks his dry lips. Seokjin spits loudly into his hand and thumbs at his dick.
Jungkook's hips jump. Seokjin plays with him, stroking fast with the tips of his fingers. The sounds he's making are high pitched and embarrassing. Jungkook tosses his head back into the pillow, bites his lip and tries to stay quiet but he can't, he's whimpering like an angry kitten and trying to fuck down on Seokjin's tentacle. He can't get leverage with his legs around Seokjin and so he stretches his arms to the cabin wall and shoves himself down. Their hips knock together.
Seokjin gasps quietly in surprise, his hand stilling on Jungkook's dick for a second before he starts moving again in slow circles. "Fuck, you want it."
"Please," Jungkook squeaks.
Seokjin feeds more of the tentacle into him and the quiet, whiny noises continue to fall out of Jungkook's mouth.
"So cute," Seokjin murmurs. "So good and pliant for me."
Jungkook squeezes his eyes shut and basks in the pleasure the words give him. He likes to be good, to be told that he’s good. Seokjin leans his hand on Jungkook's lower belly to thumb at Jungkook's dick and— that's when Jungkook feels it.
He hasn't gone to the bathroom since early last night. His bladder is pretty full and with Seokjin leaning on it like this it hurts, and it's getting hard to—he's about to—it feels almost like he might—
"Please!" Jungkook whisper-shouts and abruptly yanks Seokjin's hand away from his stomach by the wrist.
It barely helps. He still needs to go and can't think about anything else now, and fuck, with Seokjin fucking him full it burns, it hurts.
"Oh, oh, I need—"
"What?" Seokjin prods.
"I need to—" Jungkook's cheeks burn with shame. Seokjin's still in him, he can't think— He looks away and takes a deep, shuddering breath. "Can I use the bathroom, real quick, please?"
"What? You need... Oh."
Jungkook has to look up even though he's shaking from humiliation, every muscle below his waist locked up tight, because Seokjin sounds— He's looking at Jungkook's stomach where his hand was and he looks—
He swipes his fingertips lightly over the trembling muscle of his torso. He's biting his lip. "You need to piss?"
Jungkook buries his face in his hands. "Just please let me—"
"You can do it right here," Seokjin whispers.
Jungkook peeks through his fingers to glare at him. There are tears clumping his eyelashes together. "You're not— You don't want me to—"
"You can," Seokjin says with so much fervor that Jungkook believes him. "You ever done that before?"
Jungkook shakes his head.
"Oh sweetheart, it feels so good." Seokjin takes his wrists in his hands and pulls them away from his face. His legs are spread in a wide V to keep Jungkook's legs spread around them and he overbalances, tipping forward and pinning Jungkook's hands to the mattress. Jungkook is sure it was an accident, but Seokjin pretends it was on purpose, rolling his hips down slightly. "You want to?"
And fuck—it's not like it's something Jungkook's never thought about. He shudders and lets Seokjin roll his hips in tiny barely-there movements. It’s nice how big Seokjin is, how Jungkook manages to feel caged in by him. He tilts his head as Seokjin kisses up his cheek to his nose to the corner of his closed eyes. Seokjin licks over the seam of one eye, tongue dragging through his wet eyelashes. It's weird and Jungkook laughs, which turns into a groan when laughing puts pressure on his bladder.
"Oh no," he hisses.
Seokjin says, "You want me to make you?”
It takes less than a minute to decide. "Please."
Seokjin gets back up on his knees, releasing Jungkook’s hands. Jungkook rubs at his saliva-covered eye.
“You’re so—weird.”
“You’re right here asking me to. What does that make you?” Seokjin’s tentacle thins out and lengthens, reaching deep inside him and choking any reply he could have made.
A second tentacle about the width of a finger pokes at him and hooks just inside his rim. It finds the ridge there and puts pressure behind it. The way it makes Jungkook tense up makes it feel like he’s pushing right on Jungkook’s bladder.
Jungkook kicks his shaking legs and that makes it even worse. “I’m gonna—” He sounds panicked.
“Baby, I’m telling you, you can.” Seokjin’s hands find his hips. “You have to relax. It’s okay.”
A sob leaves Jungkook’s chest. The last tentacle unravels from his thigh, painfully unsealing its suckers from his skin, and the tip slides in circles around the head of Jungkook’s cock. He keeps his body as still as he can and tosses his head back and forth.
Seokjin touches his stomach, dipping a finger into his belly button. He presses lightly with one finger and then two. Jungkook whimpers.
“Let go. Come on,” he says softly.
Jungkook squeezes his eyes shut.
“Why not?”
“It’s—embarrassing.”
“Why are you embarrassed?” Seokjin keeps talking to him like he’s a spooked animal. “There’s nothing to be embarrassed for. I want you to.”
Jungkook’s chest heaves and his face and chest burn at how pathetic he is. He’s almost surprised at himself, at how ruined he is.
“Is it better if I make you?” Seokjin presses down a little harder. His other hand cups Jungkook’s cheek. All the while his tentacles move, groping him and filling him.
“Please.” He wants the choice taken away from him. He wants it to be what Seokjin wants, he wants to feel it, and then he wants Seokjin to tell him he did good. He turns his head and takes Seokjin’s finger between his teeth, wanting the weight of fingers on his tongue and the struggle of carefully breathing around them, the familiarity of it from last night. Seokjin feeds him two fingers and doesn’t flinch at the scrape of teeth.
“Come on, baby.” Seokjin fucks his hips forward as the tentacles roll inside him and Jungkook's vision blurs. He's tearing up, the pleasure is so overwhelming. He loses track, for a second, of why he shouldn't just do what Seokjin is asking. The next second he locks up even tighter, muscles taut and squeezing so tight around Seokjin that it hurts.
Seokjin pushes his shirt up to expose his stomach and slowly leans his weight on one hand just above his pubic bone. “I want you to let go. Let me make you feel good.”
Jungkook closes his eyes and focuses on breathing. Tears soak into his hairline. Seokjin pushes down against his stomach in pulses and he knows he won’t be able to hold it for much longer, caught between the sensation of getting fucked and the waves of pressure on his bladder.
“Just let go.”
He does. He lets go and moans as he does. It seems to go on for a long time as he gushes out over Seokjin’s tentacles. Seokjin hooks his fingers behind Jungkook’s bottom teeth and turns his face to force their eyes to meet. Jungkook thinks he might die from shame, but Seokjin’s— he’s not disgusted or angry, he’s looking at Jungkook like he’s hungry.
The burning heat between his legs matches the heat in his face.
Seokjin shudders and gasps above him. His tentacles spasm and it’s hard to tell but it seems to get even wetter between them like the amount of green slick just doubled. Both hands clutch at Jungkook’s hips. “That’s so hot,” he says. “You’re so fucking hot, what the fuck.”
Jungkook is limp, malleable, Seokjin could move him into any position he wanted. He pushes one of Jungkook’s legs towards his chest and the smell hits him and he whimpers. It’s so humiliating, it’s so much.
“Oh, baby.” Seokjin leans down and kisses him. “You can stop crying now, it feels better, doesn’t it? How does it feel?” he prompts.
“Better,” Jungkook answers honestly. It was such a relief and now nothing hurts anymore, it just feels good.
“So why are you crying?” Seokjin laughs gently. It’s so wet between them that every tiny movement of a tentacle is loud in the room. Seokjin is still but his tentacles move on their own. Jungkook can barely think.
“Did I— Was I good?” he manages.
“You are,” Seokjin promises. “Such a good boy I managed to get in my bed.”
Jungkook sobs out and this time it feels like a relief.
“I want to make you feel good, baby, will you let me?”
He nods.
#
Seokjin shoves him into the shower again after they’re done, and once he's out the bedsheets have been changed and Seokjin is sitting on the end of the bed in a new pair of pants.
He looks up from a datapad when Jungkook stumbles in, completely naked. He had no clothes left that weren’t soiled.
“Oh, here.” Seokjin opens a drawer and throws him a button-up and some boxers.
“Thanks.” Jungkook has never been in a more awkward situation in his life. He doesn’t know the protocol for leaving a hookup’s ship in their underclothes with a plastic bag full of his own soiled ones. Should he say goodbye? Should he just go?
“I don’t take off for another few hours, so you can nap if you want.”
Jungkook is tired, the bed is so comfortable, and it’s possible Seokjin is an evil witch with the power of suggestion. He has to crawl over Seokjin’s legs to find a spot and while he’s face to face with Seokjin’s chest he notices something he hadn’t noticed before.
He yawns into the pillow. “You’re trans?”
“Yes?” Seokjin looks down at him, amused. “You really thought I was an alien?”
Jungkook rolls his eyes.
“Aw, honey.” Seokjin sits back against the cabin wall and runs his fingers through Jungkook’s hair. “That’s why no one pays you to think.”
“You’re so weird.” Jungkook’s eyes keep sliding shut. “‘S far as I know no one pays you at all. Least I have a job.”
Seokjin taps quietly at the datapad and pats Jungkook’s shoulder with the other hand. As condescending as it is, it also feels weirdly domestic and Jungkook finds himself falling into a fantasy where this is his life, sleeping in Seokjin’s bed and waking up to let Seokjin use him.
“Who’s your surgeon?” Jungkook slurs before he falls asleep.
“I’ll text you.”