Above and Beyond: the Final Chapter (1990)

A slim brunette with long wavy brown hair and a small frame starts on her back outside on a cushioned seat, but the bulk of the action moves indoors fast. She’s joined by a blonde girl — petite, slim build, long hair — and two muscular black dudes in their 20s with short dark hair. All of it goes down in a warm-lit bedroom with candles and a headboard, heavy on side angles and tight close-ups during the blowjob scenes. The brunette gives a long, slow blowjob lying on her side, lips wrapped tight, head bobbing steadily while the guy strokes her hair. The blonde takes turns riding one of the guys in a sideways position, grinding deep with him grabbing her hips. Camera stays close during oral, really focusing on the mouth action — lots of wet shots, tongue visible, jaws stretched. Both girls switch off between sucking and being fucked, all transitions smooth, no dead air.