OK, so somewhere on this site, I came across a reference to the movie "Predestination". I found out it was available on Amazon Prime so I checked it out.

Wow, what a time twister! Figures it was based on a Heinlein story.

OK, so about halfway through the movie (bzzzt! spoilers abound) the protagonist (the protagonist) has a sex change, a woman to a man, and realizes for the first time she can pee standing up. My first thought was: no more multiple orgasms.

So there's incest. But what do you call it when you have sex with yourself. Please. don't anyone respond "masturbation".

So, he/she is her own mother and father. He/she also plays pool and gets drunk with him/herself. Then he/she shoots him/herself. Actually, that came first. Whoa!

My mind exploded a few times. What a great movie!