[He slows down too, though not entirely yet, not as long as he can feel his heartbeat increasing in all too telling ways, wanting so much. He doesn't mind his feelings on that front being really apparent thanks to the reaction either, but the drumming in his ears is... a reminder as well. One he's not gonna stop and think about, but it still manages to send shivers down his spine. He prefers to attribute that more to the good feelings here that are just as valid, more important.
His grip on Bucky's clothes loosens, palms resting on his chest instead and then pressing there without pushing away, just up along to his shoulders to linger there.
Then the kiss does turn much gentler on Art's part for a moment, enough so he can mouth Bucky's name against his lips.]