Was it a dream?

So I'm having this dream the other night. I'm on my bed, on my belly, naked, legs spread, hand where it does the most good. I'm drifting off to sleep when I feel my self getting fucked from behind. I don't know who it is. I don't know if it is my wife pegging me, or if it is one of her boyfriends fucking my ass. Either way, I am not complaining.

Before too long I cum, getting the bed all wet. When I roll over to see who it was, there's nobody there!