The Groupies (1971)

One of the guys has short brown hair and a lean build — he starts off getting a blowjob from a slim brunette with long hair and small tits. She takes his dick deep, throat fucking him while he leans back on the bed gripping the sheets. The second guy, also athletic with brown hair, switches off with her and goes straight into doggy style, pounding her from behind with solid thrusts. The second girl is a blonde with medium breasts and a tight ass — she rides one of the guys in bed, bouncing slowly before he flips her over and starts slamming her harder. Camera stays close during the blowjobs, you see every lip movement and gag reflex. Both guys cum on thighs and stomachs, messy finish with a bit of wipe cleanup at the end.