I did read in a book on Astral Projection, that it is possible to have sex with someone while you Astral Project. It can happen. I don't mean to be perverted or rude. But it can happen. You can meet someone else who is Astral Projecting at the same time. But you usually meet them somewhere.
In my case We start in my room. And it does seem to kick in while we have sex. Is it the state I'm in? Sex can be very powerful.