They fight in words and they fight here, too, the kind of back-and-forth that's just the right kind of fun, and Steve's next groan catches as he abandons any rhythm for force, hands gripping Danny's hips hard while he literally slams in, sharp jerks of his hips as the sensation gathers and collects in the pit of his stomach, making it hard to breathe, think or do anything that isn't this, rocking inside Danny as he grunts his name.