Liza (1972)

A slim guy in his 30s with short brown hair is alone in a bedroom, sitting on the edge of the bed under dim light from a lamp. He’s fully naked, stroking his cock slowly while looking down at it, one elbow resting on his knee. The shot stays tight on him for a while, close enough to see the motion but not overly graphic. Later, there’s a wide outdoor scene showing two naked slim guys in their 30s standing in shallow ocean water, both fully submerged from the waist down, just facing each other on a quiet beach with sand and natural lighting. No interaction between them, just standing there. Then it cuts to a dining room where the same brown-haired guy is sitting across from a young blonde woman who looks 18 or 19, long hair, slim build, eating at a table with food and drinks visible. They’re both dressed, having what looks like a casual meal together, no sexual contact. The lighting throughout is natural in outdoor scenes, warm indoors, and the whole thing has a low-key, personal vibe.