[Tseng hums around him. It's good. Too good seeing Zack coming undone. This time there is no surprise and Tseng enjoys himself. He laps at the head, tongue exploring the little slit and he doesn't even mind the taste. He hqs his hand on what isn't in his mouth but the next stroke brings Zack even deeper.

He swallows around him. Not gagging though it's tempting because Zack is almost too big for blowjobs in his opinion. He caresses his hips and lets him have the bit of control because it's too good.]