If you really wanted to keep your most embarrassing secret from your girlfriend's mean roommate, Penny, you probably should not have let her borrow your laptop. You do kind of owe her since you are always hanging around their house but you should have guessed that Penny is the type of her girl to check your browsing history for stuff to tease you about. When you ask for your laptop back she just starts reading some of your recent searches aloud in between giggles Everything from "penis growth possible?" to "hot girls laughing at small dick". Now Penny knows that your cock is little and that you have a humiliation fetish. She jokes that she is going to start making fun of your girlfriend for having a small dick boyfriend if you don't let her see it for herself. Penny flashes her tits and ass at you to make it more fair but she really is just doing it to make your itty bitty boner twitch. Then she realizes that saying mean and embarrassing things about your dick is what makes it twitch the most. Penny is not going to stop teasing your tiny cock until she finds your humiliation limit.