Maureen O’Connor discusses why you shouldn’t apologize for loud sex thoroughly in her article Do Not Apologize for Having Loud Sex and here are some of her points:

“Because if adults can’t have noisy sex in their own homes, with the doors and windows shut, then where can noisy sex occur?”

“As far as noisy neighbors go, sexually noisy neighbors are really not that intrusive. The noisy part lasts only a few minutes, which is more than can be said for some colicky babies and barking dogs I have known.”

“Sex happens. Sex noises happen. That’s life.”

“Someone who is loud enough during sex to be heard through a wall, however, probably knows she is noisy. And she probably just doesn’t care. And that is her prerogative.”

So there you have it, why you shouldn’t apologize for loud sex.