Yes!

James carefully thinks about what he wants, and then decides: instead of having real children, couples adopt an adult baby, who they look after but can also play with sexually.

He blinked, and when he opened his eyes everything had changed. He was in a pale green nursery rather than his bedroom, and he had a soft sleep suit on over his diaper instead of his jeans and t-shirt. After a brief panic, James realised he must have been adopted!