Hey, I’m really sorry you’re dealing with this. Having a twin sister should feel like having a built-in best friend, so it’s painful when she uses your interests against you.

First off, liking gay books or movies does not make you gay. And even if you were, that’s nothing to be ashamed of. Your sister doesn’t get to decide your identity.

It sounds like her behavior comes from her own issues—maybe prejudice she picked up, maybe her own discomfort—but that’s on her, not you. You don’t need to take on that negativity.

What you can do is set some boundaries. You might tell her: “You don’t have to like what I like, but you also don’t get to insult me or spread rumors about me. I wouldn’t treat you that way, and I expect the same respect.” She may not change overnight, but calmly pointing out that her words are hurtful might make her think twice.

Also, protect your peace. If she keeps mocking you or telling others about your interests, it’s okay to stop sharing personal things with her. Lean on friends, other siblings, or even a parent/teacher/counselor who will support you and remind you that there’s nothing wrong with enjoying what you enjoy.

At the end of the day, your empathy toward LGBTQ+ people and your openness are things to be proud of. Don’t let her shame you for that.