The nip hurts his already bitten lip, and the noise he makes is a little too throaty to truly be one of pain. Time and time again Midoriya is caught as one boyfriend cleverly builds on what the other started.

His hands twitch slightly where they hold him, just part of the many involuntary processes Kaworu inspires in him with just a few words and the touch of one finger. It's how he speaks in more private places, and Midoriya already has Kaworu's smell and taste doing more than just lingering on him.

"So... I can't let you go..." Because Kaworu wants him, because Kaworu must be punished.

Midoriya is not suave, but the gears are turning. As his eyes sweep the room, he realizes there is no couch in this library, just tables for studying. Kaworu did say he wanted to be punished, and where better than a hard surface? He carries him there and sets him upon it. He relinquishes his hold on his legs to circle his arms around his slight waist.

"You are bad. You wanted to kiss me in front of all those people." Face flushed through, he kisses him again, and his lip stings. Midoriya tastes faintly of the cider he was drinking. His heart beats wildly against where he clutches Kaworu to him. He buries his hand in Kaworu's hair, heedless of upsetting the horns more.