They both act. Taylor has plenty of sex scenes in Chicago Fire too by the way. So they're used to it. None of it is real. The only thing that's real is what him and Gaga do TOGETHER.
Taylor had to kiss Cameron Diaz once and I've seen him having a sex scene or a make out scene on chicago fire, so it's just part of the industry they are both in!
I can't not think about R Kelly and the Golden you-know-what scandal. I know he was acquitted, but that makes him a very interesting character in the song.