There were occassional times in Star Trek where scenes would get get pretty racy. Mine has to be TNG's "Sub Rosa" where Dr. Crusher seems to be at the peak of passion with a ghost. IMHO the most erotic scene was the one hinted in "Trials and Tribble-ations".
Original Star Trek star, world's favorite Facebooker, and the Internet's general purveyor of magnificent memes, George Takei was on Watch.
webclickdirectory.infoted (ASCEM) is a usenet group created for the purpose of posting erotic fiction set in the Star Trek universe. This newsgroup .