Is that Rika and Rena from "higurashi no naku koro ni"? even tough Rika+Boobs does not compute, cant tell whos the girl with gren hair, maybe the loli from macross frontier

Pretty sure that's the girls from the chorus club, Nishina Rie and Sugisaka. The third girl might be the unnamed chorus member.

Added the real source.

Added Tomoya for good measure.

...i don't think it's healthy to have a cock that big...