Constantly harassed by my older stepbrother when we're alone at home

As a college student, I've always had a bit of a strained relationship with my older stepbrother. Every time we're alone at home, he can't stop hitting on me and trying to get his hands on my tight little ass. I'm so sick of it! He's always making inappropriate comments and touching me in ways that make me uncomfortable. The other day, things took a turn for the worse when he cornered me in the dorm room and started licking my hairy muff. I was completely taken aback and didn't know how to react. He just kept going, his tongue exploring every inch of me. Despite how disgusting it was, I couldn't help but feel a spark of excitement. When he pulled out his throbbing cock, I knew what was coming next. He sprayed his hot cum all over my face, leaving me feeling dirty and used. Ugh, I hate him so much!.