You haven't had a girlfriend, or had sex for that matter, in about three years. So, it's only natural that your sexy lab partner has you so turned on while the two of you study together. She tells you a bit about herself and tries to convince you to let her cheat off of your take-home test. She even offers her tits, mouth, and pussy to you if you help her out. You know it's wrong, but you can't resist. Especially when she tells you to cum on her asshole!