Messylois

Hey guys. I need your help. I read a story a few years back and can't remember where I read it or the title. It was about this 18 (I think) year old boy who was sent to his strict aunt for the summer. He was getting 'naughty' with the aunts daughter and this led to the aunt tricking him into wetting the bed. This eventually led to him wearing diapers which in turn led to him being tricked into becoming a complete baby.