I've had a girlfriend for around two years now, and a few months ago I went to visit a friend a few hours from where I live and I hadn't seen him for a few months. We got really drunk together and went for a boys night out! We went to this club and I was dancing with this hot blonde girl, assuring her I wasn't going to try anything on with her as I had a girlfriend. After a few minutes of dancing with her she began grinding up against me, trying to turn me on. It worked. I took her over to the side of the club where my friends couldn't see (they were distracted by the girls they were dancing with) and let myself go. I've never cheated in my life before but I was really drunk and couldn't help myself with her. I pulled her up against me and kissed her hard, she pulled my waist into hers and kissed me back, swirling our tongues around each other's. I moved my hand round from her waist and slid my hand down the front of her underwear and felt her soaking wet pussy against my fingers as she subtly opened her legs, still standing, to let me gain access. I slid a finger deep inside her warm, wet pussy and felt her breathing change against my mouth. Her hand slid round my waste and moved down to my jeans, caressing the obvious hard bulge in my pants. I allowed her to do this for about thirty seconds before realising what I was doing. I loved my girlfriend. What would my friends think if they knew???? I pulled my fingers out of her wet c**t and up onto her arm, pulling her hand off my throbbing cock. I kissed her again and apologised, telling her I had to leave. She began to protest, asking me why, but I had already gone, walking across the club and straight into the toilet to wash my hands before returning to find my friends. Nobody has ever known.