Die Liebesbriefe einer portugiesischen Nonne (1977)

Starts with this hot blonde—looks like a nun but way sluttier—bending over in a dim room with candles everywhere. Guy with slicked-back hair goes down on her standing up, her hands on her knees like she’s trying not to fall over. She’s got that slim body but these massive tits that bounce every time he hits a good spot. Later, she’s sprawled on a bed touching herself, legs spread just enough to see everything. Then the scene switches to a dark-haired girl, petite but with a tight ass, getting pounded from behind by the same muscular dude. They’re in some stone room that looks like a castle dungeon, and the camera catches every thrust from the side. The lighting’s all moody and shadowy, so it feels like some secret hookup. Guy in his 50s pops in later, just talking, but the real action’s with the girls and that one dude who knows how to use his hips.