You are my flat mate, and I've called you into my room for a chat. It's been bought to the attention of the other girls in the house that you are a peeping tom, a pervert who has been spying on us the in shower. If I tell the landlord what you have been up to he will throw you out, in a house full of girls a pervert like you is not a good tenant! So I have decided to have some fun and blackmail you. I hold up a large adult sized diaper, I call it a nappy because I am British, your eyes go wide and you looks very scared! So here is the deal, I wont get you kicked out our house if you wear this diaper to work, all day every day. I will check you have it on when you leave for work and as soon as you get home through the door myself and the other girls in the house will check it to see that you've been using it. After a long day at the office it will be full of pee and mess and it will be so humiliating for you. I hope your colleagues find out, maybe by the rustling sound of your diaper under your trousers, or maybe because you go to the toilet at your desk!