After a delightful dinner with my professor, I decided to take things up a notch. I undressed and let him play with my big clit, making me moan in pleasure. He then took me to his group, where I offered my ass to be pleasured by his monster cock. The guys in the group watched as he fucked me hard, his big cock going deep inside my ass. I could feel every inch of him, making me moan even louder. He didn't stop there, he kept pounding me, making me cum over and over again. When he was ready, he filled me up with his hot cum, making me moan one last time. What a wonderful night with my professor and his friends!.