I was in a long term relationship where we agreed to whatever we wanted when we were asleep, we could get. I'd go down on her and shed wake up with me inside her. shed go down on me and I'd wake up with my cock inside her as she rode me. she also allowed me to put it in her ass if she was sleeping too (she said it didn't hurt this way because she was more relaxed). we behaved like a marry couple and were very open in communication so our relationship was somewhat unique.