Two serious girls with glasses who usually study hard. But in reality, they are perverts. When these two let loose and drink at home, they get drunk and play pranks on their sleeping brother-in-law. At first, they play cute pranks on him, such as poking his face and licking his ears, but the pranks escalate to nipple licking, French kissing, handjobs, and more, to see who can do the most amazing thing! Even when the brother-in-law wakes up in the middle, they continue the prank! In the end, the two of them rape the confused brother-in-law!