My brother keeps using my lotion to jerk off

It’s been a year and a half since he’s been jerking off in the bathroom and I can always hear him on porn hub…like it’s quite obvious that anyone a few feet away can hear the lewd audio 🙃. Is it that hard to wear headphones?!?

Anyways, before he starts beating his meat, I always hear him opening a cap in the bathroom then closing it. I know it’s not lube because I’ve never seen him walk out with it, and he wouldn’t deliberately leave it in there. So yesterday I decided to open the caps of my lotions to see if one of them made a similar sound, and I was right. He’s been using my bath and bodyworks lotion to jerk off. It’s half empty too, which is impossible because I rarely use it. Plus it’s a limited scent so there’s no way I’d use the lotion 24/7. I’m just so grossed out because now I’m gonna clean all of my lotions in there and move everything into my room 😭.

Edit: ok now that I realize it, is it even safe to beat your meat with scented lotion?!?! I just feel like thats gonna make the private area so irritated 💀.

Edit 2: I should clarify some things. Yes we are teenagers, he is older than me though. No he doesn’t have a fetish, and you might be like “well how do you know?” I just know. I simply believe he just doesn’t care about using headphones and tries to listen if someone knocks. And I’m not making this story up??? Why would I lie about this? Plus for anyone asking why I can even hear all of that, ITS NOT MY FAULT THE WALLS ARE THIN!!