The Keepers: Pien ($2.99 at checkout with code DADDY)

Pieter Nillson wakes up to find that he has been transported to the planet of Nrantia. He is in the care of his Keeper, Huma, who will have total control over all aspects of his life and body. Renamed Pien, she tries to help him adjust to his new life after learning that he will not be able to return to Earth. Physically, Pien is much smaller than his Keeper and the other Nrantians. Huma takes care of her as if he were a very young child. He is forced to wear a quobon which is similar to an Earth baby's diaper, drink from a bottle and sleep in an enclosed bed. 

Huma's care for his body is very invasive and thorough. His Keeper's punishments for Pien when he chooses not to follow instructions are swift and applied to his bare bottom.

Are you brave enough to travel beyond the stars and discover the magic that can blossom between a Keeper and his or her charge?