Shoujo x Mousou Adult!

Just to show I'm not a KonaKaga exclusive person, here's a doujinshi revolving around Hiyori & Patty. It does have a bit of KonaKaga at the end — and also a page of twincest at the very end — but I'll consider this a non-KK share anyway.

This is untranslated, so if someone out there has the will, please go at it.