Work Text:
It's harder than Dick expected it to be, rolling Jason over, keeping his touches light enough not to disturb him; his heart is in his chest as he stares at Jason's face, ready to catch the second he rouses. He doesn't bother stripping him down, he doesn't want to take any longer than necessary. It's too much of a risk—Jason can wake up at any moment.
Instead, because Dick is slightly more desperate than he is cautious, he reaches for the sloppily-tied drawstring of Jason's sweatpants and tugs it loose, shoving a hand down the front. His fingers meet skin-warm cotton and curl around Jason's flaccid cock, hot even with his underwear separating them.
It twitches under Dick's palm, the faintest movement that brings laughter bubbling up the back of his throat. He wants to make a joke—something about Jason being not-so-little anymore, about him getting bigger and not having the decency to tell Dick—but arousal wins out, and Dick needs him now. Swallowing, he traces his fingers along Jason's clothed length and tries to imagine it inside him.
Who has Jason been with? Does he know how to use it, or will Dick have to hold him down and fuck himself on it, taking what he wants from his baby brother? Both possibilities leave him aching.
Dick hooks a leg over Jason's thighs as he tugs his boxers out of the way, pulling him free. Heavy in his hand and thicker than Dick could've expected, Jason's cock is everything he's wanted. Everything he craves.
His own sleep shorts are so big the material hangs around him, leg holes baggy enough for Dick to hook a finger in the crotch and yank them aside to expose his bare cunt. He shuffles until that wide cockhead bumps against his dripping hole, and bites his lip to stifle a moan. Sucking in slow, measured breaths past his teeth, Dick grinds on Jason, teases himself relentlessly by never pushing in. His cunt slicks up Jason's cock with every pass, lips spread around the girth of it. It's torture. He's never felt anything like it.
Jason snores on every other inhale, scrunches his nose and drools a little, and Dick leans in to kiss the wet corner of his mouth when the tip begins to stretch his pussy open. He goes slow, slower than he's ever moved before, lightly fucking Jason's cock into his cunt, slipping it into himself just enough to feel the burn but not any further.
With Jason's cockhead nestled in his tight pussy, Dick runs his hand along the rest of it, jerking Jason off to get him harder. He's fattened up already—it's impossible for him to be unaffected, not with all the stimulation and wetness—and Dick wants nothing more than to settle on him fully, take everything he has to give.
But Jason might wake up, and he'd tell everyone what a pervert Dick is. He can't have that. This will have to be enough. Clenching around Jason, coaxing him to full hardness, it's easy to get lost in the slow, smouldering build-up. Dick's stomach burns with need, and he's sure it'll take nothing more than a couple of strokes over his clit to send him over the edge; he wants to finish with Jason, though, share that with him if they can't have anything else. They'll come together, Dick will tuck Jason away before slinking off to his own bedroom with Jason's load dripping down his thighs, and then he’ll fuck himself stupid until he can't see straight.
As long as Jason stays asleep, things will be fine. It’s hard to tell if Jason’s leaking into Dick’s cunt with how wet he is, but he hopes so—he’ll lick the mess off his dildo later and see if he can taste the difference, scoop it out of his hole and drink it down so Jason’s musk fills his stomach and sates his appetite.
In his sleep, Jason groans, tips his head until it’s pressed to Dick’s neck. Dick wonders if he’s dreaming, if he’s ever thought of this too; does Jason fall asleep spread out like that, gorgeous and inviting, because he wants Dick to use him?
His mouth opens against Dick’s throat, and maybe Dick should’ve known he wouldn’t have managed to hold out. He shivers and bucks, humps desperately to draw the too-soon orgasm out as long as he can. It punches through him, draws his body tight until he snaps and cries into Jason’s hair. His vision blurs and his head pounds with blood, too loud in the silence for him to notice Jason stirring.
“Wha–? Dickie? What are you–?” He freezes, muscles tensing, and whines as he empties into Dick, hips nudging forward to split his pussy open. Another inch sinks into him, ensures Jason’s seed spills deep. “Oh, oh fuck, Dickie–”
Mind blank, Dick balks. “Jay?” He makes his voice drag, fakes confusion—it’s heavy with arousal, but Jason can’t possibly assume… Can he? He doesn’t know, does he? Jason tries to push away from him, tries climbing out of bed, but that makes his cock drag against Dick’s cunt and he flinches.
They blink at each other, chests heaving from climax, and Jason’s so pretty with tears in his eyes, with guilt twisting his features into something miserable. Cum leaks out from the seal of their bodies, makes an awful squelching noise when Dick shifts and tries to hug Jason to his chest.
“It’s OK, I promise,” he whispers, thumbing away the wetness on Jason’s cheeks. “You didn’t mean to. We were sleeping, you didn’t know.”
“I didn’t mean to–” Fuck, he sounds wrecked. Jason sobs into Dick’s vest, the sound of it so pathetic and broken Dick almost wants to tell him the truth. He can’t, not now—Jason would understand… Maybe.
“Ssh, honey, I forgive you.”
“I was just– I was dreaming, I didn’t know, Dickie, I swear.” He pulls back, looks up at Dick with red-rimmed eyes and flushed cheeks. The poor thing; Dick is going to Hell.
He gathers Jason into a hug and lays down with him, trying and failing to ignore his sopping pussy, the cum flooding from it. He can deal with that later, once Jason stops crying and dozes off again, once he musters up the courage to leave. It feels impossible, especially with the way Jason clutches at him, still plugging up Dick’s pussy. How is he supposed to get up and walk away, pretend this never happened?