[It's almost not fair how fucking good Denki is at this. He knows how to use his lips to grip him and make the perfect tension or slack when he slides back and forth on his dick. Knows just the right times to suck harder or softer, leaving Katsuki's dick stripped "dry" of extra saliva or fucking swimming in a coat of it. And goddamn but he does magic with his tongue movements. Bastard's probably able to tie a cherry stem in a knot in his mouth with that thing.
(Or electric cables, knowing Denki.) The hum is a killer addition that Katsuki's got no prediction on, leaving him tensing up and yelping in surprise as the vibrations run across his dick. Through his head and shaft, right down into his balls.
Even if they're in the shower, muffled by the spray, safe in their apartment, Katsuki clamps his mouth shut after that embarrassing noise, lips pressing firmly together. Outside of rare moods, he always makes Denki fight for his voice. Half out of pride, half because Denki's a brat and knows how to drag it out of him. He feels the way his lover squares his shoulders in anticipation.
Shit. Please don't electrocute his nuts, babe. Says the guy who's taken hold of Denki's cock with a handful of tiny explosions. Fingers roll his balls in a way that'd make an optical illusionist whistle, though it has Katsuki arching up on his toes and grunting in pleasure as his boyfriend leaves his sac alone and instead takes a trip between his legs. The blonde's cock jumps in his mouth, precum spurting right as Denki's fingers trail down the sensitive tract of his perineum. Thighs harden and Katsuki curls his fingers against the wall, mouth falling open in heavier breaths.
If they only had a Sex Ed course in high school, Denki would've had at least one A+ on his transcripts.]
no subject
(Or electric cables, knowing Denki.) The hum is a killer addition that Katsuki's got no prediction on, leaving him tensing up and yelping in surprise as the vibrations run across his dick. Through his head and shaft, right down into his balls.
Even if they're in the shower, muffled by the spray, safe in their apartment, Katsuki clamps his mouth shut after that embarrassing noise, lips pressing firmly together. Outside of rare moods, he always makes Denki fight for his voice. Half out of pride, half because Denki's a brat and knows how to drag it out of him. He feels the way his lover squares his shoulders in anticipation.
Shit. Please don't electrocute his nuts, babe. Says the guy who's taken hold of Denki's cock with a handful of tiny explosions. Fingers roll his balls in a way that'd make an optical illusionist whistle, though it has Katsuki arching up on his toes and grunting in pleasure as his boyfriend leaves his sac alone and instead takes a trip between his legs. The blonde's cock jumps in his mouth, precum spurting right as Denki's fingers trail down the sensitive tract of his perineum. Thighs harden and Katsuki curls his fingers against the wall, mouth falling open in heavier breaths.
If they only had a Sex Ed course in high school, Denki would've had at least one A+ on his transcripts.]