Stretch Bill vol 1: Gogo vs The Crazy 88:

The Crazy 88 are a weird bunch, and the reason might be Gogo herself. To be a member in fact, it is necessary to accept and endure Gogo's brutal perversions. Every new member of the Crazy 88 must wear a cock cage, and be anally trained to the point they can take at least two fists up their ass. Such brutal stretching is to be endured at least four times a week for months.