i feel uncomfortable

so my boyfriend and i went upstairs to my room for a little makeout and nap action and that’s exactly what we did but we were making out and he was a bit more .. vocal than usual, he fell asleep and i went out to wash my face and come back to fall asleep and i walk out and my stepbrother is sitting there outside of my room like a complete creep, he doesn’t even say anything he just stares at me while i walk to the bathroom, it makes me feel so uncomfortable especially knowing he thinks we were doing more than making out ew ew ew