Kids hearing loud sex???,,

Tre
So I love sex'n my wifey. She is really sexy and our sex life is amazing. I like to talk alot during sex and love love love for her to be extra loud and moaning crazy...simple put the shit turns me on and she does it but only when we are alone and the kids are not home. I personally don't give 2 shits if they hear us getting it in or not. We have 3 teenage boys ranging in ages of 9-14. They know what it is and that mommy gets the "D" on the regular. They are not stupid or dumb. My thing is so what if they hear us. Thoughts on subject?????