Justin's hips moved instinctively at the effort to undo his belt, giving the room that was needed while still encouraging touch.
He slowly pulled out of the kiss again, suckling on the bloke's lip before finally pulling away and trailing his lips along his jaw, then lavishing attention on the bloke's neck.
More buttons were undone, and tails pulled from trousers, until the shirt hung loose on his partner's frame. His lips moved from neck to collar bone, hands growing greedy as they reached to caress more available skin.