something like this has happened to me before, really weird. It was back in 2000 or so and I felt hands on me, etc. and then whoever it was enter me. It happened a few times that year and sometimes similar things "not as well defined" in later years have occurred. I'm inclined to believe that it had something to do with someone in an adjacent apartment having sex with her bf - as if i was experiencing it too since I faked my orgasm one time.