A still of
Jamie Lee Curtis topless during a sex scene with Ray Liotta from Dominick and Eugene.
I’ve never seen any nude caps of Jamie from this movie before, so it took quite some time to figure out the source.
I got lucky with a reverse image search and once I knew the title of the movie, I went on a hunt for the movie itself. I was able to find one version of the movie, a 84 minutes long which doesn’t show any nudity during the sex scene.
It could be that the nude scene, and some other scenes as well, were cut out, since imdb states that the runtime of the movie should be 111 minutes and some reviews mention sex scenes and nudity in its content warnings.
Hopefully, with some luck, I'll be able to locate the longer version of the movie as well. Until then, here's one, I guess promo, still from the movie.