DUDE
not cool

That's, young boys, the reason why you shouldnt leave your dicks out

I must have the rest of this.

Dawwww, she made it kid sized for Nagi.

I never used the severed_penis tag before! Chance!

i know i should pity him for that. but i couldn't help my self to not rofl.

I must have the rest of this. [2]
What is the doujinshi's name?

Here you go.

Himo-pan to Meido-san de by monoxchro
http://g.e-hentai.org/g/108982/0cd6f51abc/

Unfortunately not translated.

It's actually not him, the gist of the doujin is that since Hayate's so busy banging Hinagiku, the three stooges, especially Risa, are getting mad. So they hatch a wacky plot (with the help of Isumi) to dress up Miki (closest in appearance unfortunately) as Hayate and have her molest Maria then catch "Hayate" in the act.
And it just gets sillier from there.

......Let us all now take this time to grieve for our fallen brother. Though he may still take in the breath of life, in our hearts as fellow men he is without a doubt dead both inside and out.

Amen.