My parents are always away on business trips, so I'm living alone at home. Then the serious girls from my class come over to celebrate their exams! They even bring alcohol to the party! It's their first time drinking, so they're drunk and their underwear is completely visible! I'm forced to drink too, and when the girls get hot, they start taking off their clothes and my erection won't go down because of their excessive skinship... Of course, I thought it was Ito when they found out, but when they got drunk and horny, the girls started wanting my lower body!