One guy gives up control and lets the other call every shot, with a heavy dom/bottom vibe and lots of obedience. You often see kneeling, being pinned or restrained, collars and leashes, and verbal stuff like orders, praise, or humiliation while he gets fucked hard. The focus is on body language like lowered eyes, presenting his ass, and taking dick without resisting, usually ending in a messy, owned-looking climax.