Bill walks around, unable to close put away the book, and knowing that if he continues to read the magic will continue to work on him. He doesn't want to give birth, if that's even possible.
Finally he sees a couple of other books. He's in the children's section, but they're books for parents. Trying once more, he reaches for the shelf and tries to push the book in.
This time, it manages to release itself from his hand, but he realizes he's holding another book. It didn't help at all--he was only able to release the book because another one took its place!
He looks at the book and sees that the title is "Your School-Age Child." The book starts by quickly describing the process of birth and a child's growth to age 5. Only once again, he finds himself reading, unable to stop. As he reads, his belly gets bigger, and he feels kicking. Then magically, it's empty and he's holding a baby girl in his arms and awkwardly raising the book past it. The baby grows bigger and older and soon grows big enough that he drops her--and as he drops the girl the girl snatches the book from his hands and then lets go of it.
"What's going on?" says Tammy. "You were pregnant, and you have a girl now."
Bill looks at the girl. "I guess she needs a name. You're... umm, Billie."
"Billie..." says the naked 5 year old.
"But nobody will believe what happened here," says Tammy. "Maybe we can find something else in this store to help you..."