WIP - Curse of the Butt A (Patreon)

So I said I wasn't going to do this, but then I thought I should see how hard it would be, and here we are.

This is, of course, related to that comic I posted recently. 

Not that I should have to say this, as it should be clear to everyone, but this woman is absolutely a full grown adult (I want to say mid 20s), and she's doing this completely of her own accord.