"Love you, baby," Steve says, low and breathless, against the curve of Danny's throat, burying his face there in the crook between neck and shoulder as he barely quickens his pace. He's willing to give it a little harder to him now, but not enough to bruise. The only marks he likes to leave on Danny are the ones they'll both admire later. He can't fight off a groan when it rises in his throat. "God, you're so - tight."