So my little brother is almost 16, and he came over to me and my boyfriends house at 3am last night. He said he had something to tell me.... A bit of back story, he has a female friend (he had a bit of a crush on her). She had always made jokes about him being gay. It had made him uncomfortable. So he told me she had took him to a party. He got really drunk and a guy there ended up having sex with him. He said he remembers saying no multiple times. He woke up naked in a bathroom.... She then admitted to him a few weeks ago she had planned to get him drunk so he could have sex with the guy for laughs.... She laughed about it to his face and told him she knew he was gay. She also said he didn't scream there for it isn't rape. It took my brother almost too months to tell me. I hugged him while he cried. However he made me promise before telling me to not tell anyone so I am so lost at what to do. This chick is 18 and I'm 20 so I really want to beat her ass. In my mind if she planned this she is just as guilty. My brother feels embarrassed about the whole thing. But I feel as the adult I should tell someone... IDK what to do, but I'm probably beating her ass.