bring them to your room?

That’s disturbing. Definitely tell a parent

Nothing cus it's awkward

Tell him to stop taking your things because they're gonna get used for things you don't want

beat him with your dildo!

Question him about it.

Telling your mom or dad would be the best option. If nothing happens after you tell them then investing in a lock on your door and being more cautious until u move out would be the best strategy unless there’s someone you can move in with

Take them back 🤣

I would definitely confront him about that because if he’s your biological brother then that’s means he’s got a problem and serious issues! But now if he’s your step brother then we all know what that’s going to lead to lol

*insert step bro impression here