When I was in college a bunch of us were invited to a friend's house for a New Years Eve party. Everyone was invited to stay over instead of drive home drunk. About half a dozen people stayed with the understanding that we would have to sleep on the thick-ply carpeted floor in the living room. We were pretty drunk and the carpet was very soft, so it was fine to stay.
Around 3AM I woke up to go to the bathroom. The room was dark except for a small night-light in the far end. I was about to move when I heard a slight moan. Looking over I saw Sylvia hovering over a sleeping Beth.
Sylvia and I had gone on a couple of dates and fooled around a little but that was all. She was a 20 year-old brunette with perky breasts and a nice ass. Beth, meanwhile was an average-looking 21 year-old with curly red hair and was a few pounds overweight. However, she did have a very sweet butt.
And now while Beth lay on her stomach, there was Sylvia actually leaning over with one hand holding Beth's skirt up as she peered underneath looking at that butt!
I blinked my eyes a few times trying to focus and take in the action less than 10 feet away from me as I lay there in the dark. I couldn't believe what I was watching, but Sylvia was actually rolling Beth over onto her back. After waiting a moment, Sylvia leaned in and put her head underneath Beth's skirt as Beth lay there passed out drunk.
I listened but at first couldn't tell what was going on. Then I realized the sound I heard was of Sylvia sniffing Beth's pussy. Sylvia was fooling around with a girl!
Sylvia then sat back on her haunches, surveyed the room, apparently to make sure everyone else was still sleeping, and then went back to attending to unaware, sleeping Beth. She eased the skirt up and let it drop on Beth's stomach, revealing lacy panties. With one hand she eased the side of the crotch-band to the side. Even though it was kind of dark in the room I could still see that Beth had a nice full curly bush.