Under Lock and Key (1995)

Eliza Grant and Hunny, both slim brunettes with long hair, plus Ruby Tuesday, a fit blonde with a tight body, star in this gritty prison setup. The scene starts in a fake police car, one of them in uniform, then shifts to a dim basement and a cell with barred walls. They strip down fast — all three are fully naked by the time they hit the shower scene, where Eliza gets on her knees and sucks cock hard, throat deep, messy. Back in the cell, Ruby rides one of the guys with her back arched, then takes it from behind while gripping the bunk bed. Hunny goes at it doggy style with long, slow strokes, then switches to missionary with visible moaning. The lighting stays dim throughout, close-ups catch every facial expression, and the girl-on-girl stuff happens during oral tag-teams. No softcore crap — they spit, sweat, and go at it with real urgency.