Any idea what collection this is from?

A godly one. Looks like it's supposed to be higher rez, too.

Feito-chan's ass is best.

It's from "cappuccino", which no one seems to have bought and uploaded it. I found it off the samples on this page: http://akibadaisuki.jp/index.php?main_page=product_info&cPath=17_637&products_id=411

Hey look, she's role-playing Arf! *shot*