My girlfriend is not only wonderful and sexy… but she gives guidance on personal problems for women, especially who struggle to achieve true orgasm. She wants to help them and practice the art of sex with them. Yesterday she had another orgasm workout with a couple of girls. The more I stayed behind the glass doors and watched these ladies bend over and show off their perfect curves, I couldn’t help it but get horny and hard. So before the situation got critical, I walked into the gym studio, and in those few minutes that I had my eyes off of them, these three girls managed to get their tight gym clothes off and to start touching themselves. As it turned out, the three naked girls needed a male assistant who they could practice on. I walked closer to the slutty group. When the girls saw me standing near them, they gave me their full attention. My girlfriend begged me to bang all three of them, and show them and help them how to achieve the most intense orgasm. I was hesitant, but seeing these three cuties on the floor with their begging eyes, I couldn’t say no. So I let my girlfriend take off my pants and the three naked girls glued their mouths to my rod I let them play with my cock a little before I had all of them bent over and ready for my dick. I started with my girlfriend, pounding her to oblivion, and then moving to her slutty friends. My cock stretched and filled their slits out, and we broke a bigger sweat than these cuties could ever achieve alone. All of us tried different positions until every single one of these girls was cumming on my dick.