Working it Out (1991)

Blonde girl with big tits and a thick waist starts on her knees, sucking one guy while the other jerks off watching. They switch off fast — she’s not picky, takes both dicks in her mouth like she’s used to sharing. First guy fucks her in doggy on a bed with a towel under her, pounding hard enough to shake the frame. Camera’s tight on her ass, you see every slap. Then they move to a gym — weird but functional — she rides one guy on a bench while the other stands, stroking and spitting on her back. The second guy gets his turn anally, slow at first but then deep, both of them grunting. Lighting stays dim, mostly close-ups, lots of skin and sweat. No fake moaning, just dirty sex that looks rehearsed but still nasty.