Are there any stage plays which require sexual intercourse on the stage?

Question

I know there are Stage Plays which require nudity and simulative sex on the stage.
Are there any stage plays where it is necessary to perform oral sex and sexual intercourse on the stage?

Answer 1

Living Theatre company members sometimes had sex with one another and with members of the audience during performances of "Paradise Now." But that was a semi-improvisational work that changed from one performance to the next, so sex was not always part of the show.

Answer 2

The Rocky Horror Show has a scene where Frank'n Furter seduces Brad and Janet. This seems to usually protrayed behind a screen in silouette, or in the last production I saw, a large bed stood on end with the oral sex suggested as Frank went under the covers. I suspect it will be illegal to show actual oral sex and intercourse on stage.