Apparently, it happens:
Mr Buchanan told the Australasian Sleep Association how a patient of his, who was a respectable middle-aged woman with a steady partner, would leave the house while sleepwalking and have sex with strangers. The woman was totally unaware of her double life until her partner became suspicious and found her engaged in the act. “He was aware of some sleepwalking and there was circumstantial evidence, including the unexplained presence of condoms around the house,” Mr Buchanan told the conference.
Kinda scary if you ask me! I wonder if you would still seek out only individuals you would be attracted to when awake?
Read: Boing Boing
MasterMaq's Blog 
I have been wondering if I could get away with this with the wife. I had no idea what I was doing, I was sleep walking.
I would hope that I would still pick attractive people in my sleep.
Only one way to find out I guess! 😛
shit. even when some people sleep they get it. i need to be on whatever drugs they’re on. 😛
thats crazy!