Friend: All my friends that are married seem happy and say they are happy, but they complain all the time about not getting laid.
Me: My brother in law complains about that all the time, but he only does it in front of my sister. I know they have plenty of sex, so I think he does it just to tease her.
Friend: How do you know they have lots of sex?
Me: I live with them, I hear it all the time.
Friend: That must get annoying.
Me: No, I'm use to it. Sometimes I fuck with them...
And then everyone was at a loss for words...
You damn perverts, that is not what I meant!