Awkward sex

So my boyfriend and I sort of have sex everything we see each other or I'll just give him a blowjob. We only see each other two times a week and he has a very high sex drive. He shares a room with his brother and the other night he really wanted to have sex but his brother was a sleep across the room. He kept telling me he took sleeping pills so he wouldn't wake up. So, I sort of gave in and we did it. I'm surprised that his brother didn't wake up with all the sounds. It was very awkward.