I was in my college dorm room when it happened. My roommate had left for a few days and my girlfriend was supposed to be out with friends for the afternoon, so I had a few hours of privacy and time to myself. My roommate had a glossy magazine of bikini models, and I started looking through it at all the hot girls in tiny bikinis and skimpy swimsuits. It had been over a week since I had sex with my girlfriend, and at that young age it didn’t take much for me to get aroused and erect.