You have hired your sister as your personal assistant and secretary and she informs you that you were able to close the deal, because she gave a blowjob to the client. What? Are you jealous? She knows that your wife won't fuck you, so it's normal to be upset that the clients get some action and you don't. But, hey, as your personal assistant, she can assist you with your blue balls problem too. All you have to do is ask her. You know you want it ;)