Ginny in her 7th year after Voldemort's defeat, during the year the students are throwing a party where they play cards during the party Ginny goes out to the hall and runs into Draco where he tells her that he thinks she is submissive and wants to be a slave so he says they should bet on a hand of cards and if he win's she has to swear a magical oath to be his slave and she says what make you think you will win and he hands her a potion that will make her unlucky for the next hour so she is guaranteed to lose if she takes it and then he walk back into the party telling her it's her decision whether to take the potion or not, then she thinks to herself that he's right takes the potion does the bet and loses becoming Draco's slave.
