I really hope you can share these scenes with us. Despite what you wrote, I would really like to see these rare scenes.
OK, I've got the tape up and here is a description of the scenes:
Montage of Julia Stemberger's face (always used to do this so I knew what the actress looked like).
The pair play a photography game where each has to stip under cover of darkness and then the other takes some polaroids and thus only sees the other nake via the quickness of the camera flash. He cheats her by turning the main lights on while she is still nekkid - she slaps him. Both actor and actress seen full-frontal.
She puts on a record and joins the guy in bed. Humping seen from side - not much on show.
Both naked from side kissing in front of window. In long shot he moves down her body kissing her. Her pubic region seen in long shot.
Cut to in bed. Her breasts seen as she runs her hand down his naked body and across his penis (limp). Then repeat of this done by me on jerky VHS frame-by-frame!
Rolling around on bed naked - ass shots.
Her running her hands up his face-down naked body, running finger along his crack up to face.
Same but reverse - he goes down her body (avoiding ass crack this time). She rolls over and is seen ff. He runs his fingers up thru her pubic hair and back again (this is big-bush era folks!). Goes down to perform oral sex on her, but you can't see anything.
Sitting up screwing seen from side (see her breasts).
Takes her top off revealing breasts. More screwing but camera on her and his face. Then side shot from pelvis up to their faces showing grinding motion. Long-shot of ditto. Rolls off her - tits and brief bush. She gets out of bed in long-shot, he is laying there with hard on. Then my slowed-down versions of some of these bits.
She helps him into tub. Both naked, both ff.
Both naked on bed - see one of her tits and his pubic hair. She covers both him and her up but you see more of her tits as they talk afterwards.
Brief telephone conversation where she is topless.
Him getting ready for boxing match - ff in mirror. She applies brown body paint and rubs it it, inc ass. Moves hand across his penis twice to aid with this (I detect a bit of a reaction in the actor's face, almost like he wasn't expecting it - poss she didn't do it when rehearsing?) My slow version of this. This scene is where the shot further up this thread comes from, though he doesn't have the underwear on (you can see the brown paint on his upper body in that still, but in the actual film he is naked all the time as she applies it. So either it's a special publicity still, or it comes from a different version of the film).
End caption - Herzklopfen, Austria, 1984. With Nikolas Vogel, Julia Stemberger. From an RTL-2 airing.
Video version to follow when I've figured this DVD/HDD recorder out (I was given it with no instructions).
Maybe there is a longer version, but there is nothing I've seen where stuff seems to be cut (e.g. obvious jumps in action). Having said that, the documentary cited above (2020) does tend to imply the film has been shown censored when on TV before that time. My showing would be from around 1994-6, something like that.