Trekkies (1997)

Huge Star Trek fan Douglas Marcks is dressed like a woman (i.e. A transvestite).

Some women dressed in Klingon costumes show a great deal of cleavage in several scenes.

We see many drawings, photos and paintings that have created of Star Trek characters in sensual embraces, but nothing explicit (such as one of Denise Crosby -- wearing a bra and panties -- seductively posed on top of Brent Spiner). Others show them intertwined in poses.

We also see that one of the Star Trek producers has a lamp with a base consisting of part of a classic nude statue of a woman (no head, no arms, and stopping at the knees, but showing breasts and a crotch area -- sans any hair).

We see a Star Trek action figure of Kathryn Janeway dressed in a mini S&M leather outfit.