Prompt - so you're going into a bookstore

How to Book Shop with a Bookworm

* enter store
* keep your eyes on your bookworm at all times
* wow ok you lost them
* they're gone forever now

If they were in the Fiction section and anywhere near Fantasy... Fae are known to lure humans into their realm.

Prompt & Humor - Rumpelstiltskin-esque

Making a Deal with a Fae

Human: Deal

Fae: Very good. When you return home tonight, your mother will be in pristine health again. It will be as if she never fell ill at all. Even the memory of her suffering will fade...

Human: Thank you so much. She means everything to me.

Fae: I know. I know. Let's hope the price wasn't too much for you after all. Only time will tell...

Human: So when do we start?

Fae: ...if I may ask you to elaborate.

Human: You said you wanted my first born.

Fae: Yes? And you agreed.

Human: Yeah, so, when do we start?

Fae:
Fae: Ah...

Things to contemplate So:
Gender - male/female, male/male? Which one of them is to get pregnant? Is this a case of trying to work this deal for their sibling? Will the Human take birth control to promote multiple attempts to get a pregnancy?