That night changed our lives. We were in our local pub and too much alcohol was already in us to keep our minds clear. I was by the bar having a chat with my mate and it just caught my eye when she went on the other side of the bar. I droped my head down and without turning my head saw her talking with a guy we knew, probably still about which song should play next, but she got a hold on his belt to make her stay safely on her feet.
I moved from the bar so she could lose the sight of me but I occasionally checked on her from a distance. Few meters from me, my more than drunk girlfriend was hugging him, placing her head on his cheasts and slowly dancing with the song. He had his hands placed on her exposed stomach and on her butt. I felt pissed, jealous, and turned on in the same time. I kept talking with my friend like nothing is happening, but my mind was still there. And my cock was getting harder and harder.