Who's wrong, me or him?

I am 19. My bro is 17. We live together in a small flat. Sometimes I bring my tinder hookups over and we have sex. My brother just told me that he can hear us and he would "appreciate" not having to hear it. He also got onto me for having sex on the couch that I paid for. We did not do that while he was home though, he was at school and somehow came home during lunch. I told my bro I'll do what I want because I pay 4 of the bills and he only pays 2. I also think it's fucked up that he's slut shaming me when he has sex with his girlfriend too. If he has an issue, he can always leave 🙄