Today, my friend and my girlfriend had a drink at room with me and my friend. Perhaps because I'm a friend who I can trust, or because I feel safe drinking at home, I feel like I'm drinking more than usual. My friend's girlfriend was suddenly a little drunk and looks strange... Oh!? Wait a second! Despite having a boyfriend, he approached me so close to me and said, "Can I kiss you?"!? Such an innocent girl can change this much! I'm leaving it to the power of alcohol, and today I'm going to have forbidden sex with my friend's girlfriend!