More times than I care to remember. Somehow in my younger years (18 - 23) me and my best friends ended up teaming up every chance we got. When one of us, and it was usually me, would pull a girl at the bar/party once home and past 3am the others would give up finding anything of their own and we would work together (team work, gotta love it) to convince said girl that 2 or 3 is always better than 1. It didnt always work, I remember some chicks getting kinda freaked out, but it worked more than a few times. I guess the fact that we did not care for any of the women and the excessive alcohol consumption helped facilitate such behavior. Now I would not be cool sharing my woman at all with anyone. See what a tight ass you become when you sober up? Stay wasted if you want to have a care free life. Once you start to care all the fun is over and a whole new range of feelings settle in. I guess you have to grow up some day though.
remember, always share with your good friends if possible, they can/will return the favor someday