Lustsklave (1989)

Starts with a hot blonde—slim, petite, long wavy hair, small tits, and a tattoo low on her back—lying on the bed, legs spread just enough to see she’s shaved. The guy, bald with a muscular build and arm tats, drops between her legs and goes to town on her pussy. Camera’s right there, low angle, so you see everything. Later, they’re both in harnesses—she’s bent over, ass up, while he stands behind her, adjusting straps before fucking her from behind. The room’s dim, warm lighting, no fancy set, just straight-up action. She’s also in a couple of role-play bits earlier, sitting on the couch holding a paper like she’s playing a naughty secretary or something.