I find it so annoying how my boyfriend family just like letting themselves in his room without…

I find it so annoying how my boyfriend family just like letting themselves in his room without knocking or asking to come in . Smh I’m sitting on top of my bf hugged up with my shorts on and his cousin just comes in and wants to have a whole full conversation with him while I’m still on top of him .. Smfh . Like is he stupid or dumb . I seriously can’t stand that shit . It’s rude and just fucking annoying .