Chapter Text
Getting fucked in his own bed by his annoying, former senpai, on his first day back to jujutsu world, was not something that was on his bingo card for the new year.
Getting fucked at all was not on any of his lists for the forseeable future.
He didn’t even know how it happened. Or well. He did. It was just that the chain of events snowballing into Gojo balls deep into his ass did not seem to hold when faced with any logical scrutiny.
Which meant that he had, somehow, wanted it. Just like he said “screw it” to the corporate world and left to go back to the thankless job as a sorcerer, his own inhibitions and cautiousness had said “screw it” and accepted the absolutely idiotic challenge Gojo had raised.
Or maybe Nanami himself had raised it when he commented that such a self centred person like Gojo would be, at best, able to give a mediocre orgasm to his potential partner. In his own defence, Gojo obnoxiously lauding his never-ending qualities had seemed reason enough to comment.
Gojo had jumped on it, offering to demonstrate. Nanami had no idea what insidious curse had possessed him to agree. But here he was, sprawled on his own bed, face buried in his pillow while Gojo moved on top of him.
He sucked in a breath through his teeth, cataloguing the sensations, ready to compile a scathing report for the next morning.
The heavy weight on his back pressing him into the mattress so hard he almost couldn’t breathe. The uncomfortable stretch, borderline painful enough to make him scream. The rhythm of push and pull felt as if it liquefied his intestines and sent jolts of pain and confused signals up his spine, making him wheeze. The muscled body on top of his, moving, molding both into one strange creature. The squelching sounds of their bodies joined together.
His asshole would be destroyed tomorrow. Nanami clenched his hands and started breathing from his mouth, slow and steady. Maybe he should make a doctor’s appointment. He didn’t fancy a ripped asshole, an infection or worse, a perforated colon.
“Can you recommend a proctologist?” He asked, panting from the effort of not tensing up around the invading cock.
Above him the movements stopped. Ears ringing from the silence, Nanami exhaled with relief. He hadn’t noticed how much the noise from the bed, their bodies, their breaths had bothered him, how much it made things awkward. The cock filling him up had trumped any other sense. Even now, when they stayed still, it almost felt too much.
“You’re really boring, Nanami,” his partner whined. “It’s really hard to keep it up when you don’t even give me a sexy moan or two. Even gaping like a fish would have been endearing.” Gojo’s hand swept his bangs from his eyes, making Nanami blink blearily. Gojo continued. “A bit of stutter as you talked, a hitch! You look like you’re doing your usual reps at the gym.”
Still, the low timbre made Nanami shiver. That had been his mistake from the start.
Gojo sat up, nudging Nanami’s legs apart even more.
Nanami grunted as the angle shifted. His back suddenly felt cold. He tensed up momentarily, squeezing the cock inside him, then forced himself to relax again.
“You were the one who said I can’t do anything else,” Gojo continued as he rolled his hips in place, making Nanami squirm.
One hand, warm, fingers long and deft, pressed on his back, skimming over sweat slick skin. Nanami shivered as the touch traveled over the knobs of his spine, one by one, until it cupped his nape.
He couldn’t stop his body from reacting to the thumb digging just so at the base of his skull.
Gojo bent over him again, slowly, pressing deep inside him.
The heat radiating over his back suddenly felt much more intimate than before. “Are you sure you don’t want more?” Gojo whispered into his ear. Nanami felt the question, a hot breath tickling his earlobe. Gojo’s chest rumbling on his back, making his whole body vibrate, allowing him to feel Gojo to the marrow of his bones.
It had been the reason he had agreed to this…experiment.
“Knock yourself out,” he replied, voice steady. “Just don’t touch my dick. But I still say the orgasm will be mediocre at best.”
He felt, more than heard, Gojo laugh at that. A tongue licked the length of his jugular, making him shudder with confused arousal and the shiver of danger.
Gojo kissed his maddened pulse as one hand pushed between Nanami and the mattress. Nanami sucked in a startled breath as the pad of a finger brushed against his nipple. Suddenly, Gojo squeezed.
Nanami bucked into the unyielding body above him, swearing as the cock inside him shifted in new ways, pressing against his walls. There were a few long seconds in which he twisted uselessly, desperately trying to get away from one sensation and falling into the other, both compounding each other, all the while Gojo kept him trapped.
Finally, blessedly, Gojo stopped his ministrations, leaving Nanami collapsed on the mattress, hair plastered to his forehead, panting heavily, vision blurred. His throat felt raw. Had he been screaming? Nanami wondered wildly, the thunderous drum of his heart and the harsh sound of his panting booming in his ears.
Gojo gave Nanami a chaste kiss on his shoulder. His free hand went to stroke his hip.
“Say, Nanami,” he said thoughtfully, laughter in his voice. His finger made circles on the delicate skin on the crease of his thigh. “What if I used both hands?”
Excited dread pooled into his stomach as Gojo’s hand slowly started travelling higher, on his abdomen. He sucked in a breath as Gojo lazily circled his belly button. His whole body started shivering in anticipation, but mercifully, or maybe not, Gojo did not dip in but continued higher, counting his ribs one by one.
Nanami was so attuned to the touch he almost forgot what would happen next.
His head was swimming already, and as Gojo started slowly moving his hips again, still staying deep inside, every move pressed him deeper into the mattress, making him hard.
He couldn’t stop a whimper as both his nipples were caught in a gentle grip.
Gojo’s chin rested on his shoulder. “Shall we start?”
The fingers twisted. Nanami screamed.