Catching the babysitter camming

You come home early from work to let the babysitter go home early. She is a college student so she is very busy. She babysits for you and your wife for extra money. When you get home you don't see her around. But you hear music and a strange noise coming from the guest bedroom. You walk down the hall and see bright lights. This is weird. You open the door and there is your baby sitter, topless, dancing around in front of her computer screen. She is MORTIFIED that she was caught. She begs you not to tell your wife, she loves your , they don't know she does this, she cant do it at her parents house, she needs extra money, she is a broke college student, the list goes on and on. You ask her finally, what is a cam girl? She tells you she masturbates online for guys and starts to say sorry again. This turns you on. So you tell her - I won't tell my wife and I will pretend this never happened IF you give me a live cam show, right now