The Big Boobed Delinquent's Nipple Exam

Masturbating using your nipples can make them lactate... Usami, who often plays with his nipples to get off, hears that rumor one day. Worried that he might start producing breast milk, Usami ends up agreeing to let his classmate, Inaba, examine Usami's nipples. From massaging, licking, and sucking, Inaba ends up doing whatever he pleases to them. Will breast milk actually come out of Usami's nipples!?

Official English:
Coolmic, MangaPlaza, Renta!