My stepdad's unwanted sexual advances whenever I return home

Unwanted sexual advances from my stepdad whenever I return home. This is a reality that I have to face every day, and it's not something that I can just ignore. He's always been a little too close for comfort, always finding excuses to touch me in ways that make me uncomfortable. I know that he's not supposed to be doing this, but he can't help himself. It's like he's addicted to me, and I don't know how to break the cycle. I've tried talking to him about it, but he just brushes it off and says that he loves me. I don't know what to do, but I know that I can't keep ignoring it. Every time I come home from school, I have to brace myself for the inevitable. It's like a game we play, a dance that we both know the steps to. But it's getting old, and I want out.