My roommate assists in preparing my anus for my boyfriend's arrival

My girlfriend and I recently moved into a new dorm room together, and we've been having a lot of fun experimenting with each other's bodies. One day, while we were lounging on the couch, my boyfriend texted me, asking when he could come over and fuck me. I knew that he was really into anal, so I asked my girlfriend to help me get ready for him. She was more than willing to assist, and soon we had her on her knees in front of me, sucking on my big, fat cock. Then, she helped me spread my ass wide open, ready for my boyfriend to take me from behind. As soon as he slipped his hard dick into my tight hole, I could feel it stretching me to the limit. But it was worth it, as I could feel his hot cum filling me up from behind. It was a wild and crazy fuck, but we both loved every minute of it.