Japan is FAST

[Axeman]

And there's more where that came from

[Suriko]

It's an Idolmaster doujin, albeit a rather... unique one. She refers to the male as "Producer" in later pages.

[Rednal]

Which doesn't necessarily mean someone hasn't started working on a KS h-doujin anyway... ^^ I give 'em two months, max, before SOMETHING along those lines comes out.