Denji's eyes water just a bit at the line as he pants wetly and helplessly behind his hand, body tensing and trembling as he tries to hold back just to enjoy it a little longer. His back arches, flesh softening with sweat as he groans, head rolling back in time to his eyes.

"Goddd, yeah," Denji groans, muffled behind his hand as his balls raise and tense under Shidou's hold, bulging the root of his cock between them. He's never felt anything like this. The way his nuts are fondled, cock stroked and tip sucked is enough—then he goes lower. Denji's almost worried he's gonna get his ass fingered with no prep or warning, but Shidou... presses?? somewhere? Somewhere Denji hasn't known about, which is what knocks a bright white flash behind his eyelids as he screws his eyes shut, unable to help how his hips buck forward several times as he cries out loud, long and guttural.

He bites his lip and rolls his head to the side as he pants helplessly in scattered stacatto, groaning through his nose as he rides out the orgasm—and predicted, it's hard as fuck. Probably the hardest he's ever cum.

Exactly what he was afraid of.

"...What the fuck," Denji struggles out breathlessly when he finally sort of comes back to reality, chest heaving under that shirt that definitely feels way too warm now. "Holy shit..."