An incubus in the form of a woman?! At least he has a... wait, what's that in your pants?!

From the anime film Kimi no Na wa who currently switches bodies with her soon to be husband.

It's your wedding day. You and your fiancee wake up in each other's body. There's no way you can afford to postpone...

Your femboy roommate has always had a crush on you but could never seduce you. His solution? Switch bodies with your girlfriend!

You've just used your demonic powers to swap your body with an enforcer of The Church, she's now in your old body, a weak low leve demon, and nobody want to believe her story.