DOCP-019 In the toilet, a younger brother rubs an aphrodisiac on his sister's vagina while she is in a drunken stupor and plays a prank. The intoxicated and aroused sister then loses her mind to pleasure and reverse rapes him by riding him.

Sister comes home drunk in the middle of the night and falls asleep in the toilet. What a pain. The younger brother, wanting to play a trick on her, applies an aphrodisiac to her vagina as a joke, but she shows no reaction and continues sleeping soundly. Thinking it's fake, the brother returns to his room... Eventually, sister wakes up due to the heat in her body, confused but unable to stop touching her wet vagina…! However, the throbbing can't be stopped by fingers alone, so sister, dripping with love juices, heads towards the brother's room…