[Marui Maru] Treasure Your Goose (Nukinuki Shichauzo) [mysterymeat3]

A giddy visitor gets a behind-the-scenes tour of a secret facility where collared young boys are raised as prized livestock, milked for semen the staff insist is a miracle health supplement. Between a prostate-milking demonstration and a peek at the special specimens kept for premium clients, the tour turns hands-on fast—the visitor can't help sampling one boy with her mouth while Suzi-san, a masked nurse with enormous breasts, shows off the merchandise. The finale belongs to Hirano-san, who pins the lucky boy to the bed and rides him in a greedy two-on-one session where not a single drop is allowed to go to waste.