I remember this movie from the 80s. I actually was in high school and watched it through the scrambled signal (you could sort of do that back then).

Anyway, the movie was set on a space station. There was much soft-core sex going on - straight & lesbian (or at least lesbian suggestions), but the movie appeared to be serious sci-fi (not intentional camp). Near the end of the movie, a large alien with tentacles is found in the ship by two of the women astronauts (wearing ***-length silk robes). One girl walks up to the alien who releases a tentacle across the floor and slowly up her leg and into her privates. She begins to get off from this. Then the men come running into the room and the alien impales the girl from her crotch through the top of her head. Action scene ensues and I forget exactly what happens next.

Any ideas what this could be? No idea when this was made but I'm pretty sure the airing I saw was 1985-90. Thanks.