I didn't have locking diapers I just had two sets of cuffs one set for my ankles and a set for my wrist that are connected together. I freeze the key in a block of ice and once locked up you are stuck until the ice melts so you can get the key. I put on my diaper and poured cup of warm water down my diaper to start the swelling of my diaper as I like the bulky feeling. I then sat on the floor at the end of the bed wrapped my legs and arms around the bed post. Once the cuffs were on I was stuck in the sitting position until the Ices melted. No long into it I wet my diaper and a little while later my stomach flipped and I messed my self as well and was force to sit there and stew in it until the ice melted.