The show Orphan Black, on the other hand, didn't bother with any possession nonsense and straight up had its protagonist impersonate her *spins wheel of sci-fi cliches* clone, then have sex with the woman's boyfriend in the very first episode.
On Smallville, at least we can say the shapeshifting Tina Greer didn't get further than kissing her bamboozled victim, technically making her crime sci-fi "sexual battery" instead of "rape" in the state of Kansas. It's the same in the Stargate: Atlantis episode "Duet," in which a female Marine's consciousness is transported into the body of a male scientist, which she promptly hijacks to make out with two of their co-workers. One of them was the scientist's love interest with whom he'd been way too shy. (See? All he needed was for someone else to take control and break through his pesky inhibitions!) The other was a male colleague, which is played for laughs, as the helpless heterosexual male being possessed reacts with disgust.
Have You Noticed The Pattern? All Of The Offenders Are Women.
Maybe they thought these scenes were empowering or something? It'd be nice to think it's that, and not a bunch of fantasy/sci-fi writers continually dreaming up more and more fantastical female rapist scenarios. Still, these are shows largely aimed at young males and overwhelmingly written/directed/produced by males, and the underlying message boils down to "Well, I wouldn't mind if a hot girl tricked me into sex stuff!"