Billy has always had an odd attraction to diapers and regression. His parents caught him a few times, but he always promised to stop and they left him be. However, when he gets caught stealing diapers from the neighbors, it's time he is a taught a lesson. They tell him simply, "If you want to act like a baby, we'll treat you like one." That was the beginning of Billy's new life in diapers. His parents and sisters wasted no time introducing him to his new life; buying his cute outfits, stroller, high chair... and making sure everyone knows what a big baby he is...