Smannesman: Romantic Encounters at The Dome ?
Yes!!! We have a winner! :)
(... and one that seems to have the gift of precognition, as he posted his screenshot already several posts above. ;) ).
"Romantic Encounters at the Dome", released by MicroIllusions in 1987, was a game written by a Californian psychologist and his wife. As said, it tried to let players experience different erotic situations (that happen around a nightclub, the "dome") that could actually happen, instead of describing idealized fantasies. It also included several "sex tests" that were meant to educate the players (see the second screenshot I posted). The game achieved that due to rather good writing, but as an actual _game_ it failed, mostly due to the atrocious parser. As far as I know, the game is pretty unique in its approach, and few people even know it - although it was released and sold in just the same way as other adventures of this period (as I said, I got my copy from Woolworth).
So, the game continues now with SpirlaStairs' screenshot in post #7128. :)