A virgin subordinate who seriously accepts his female boss's jokes goes through ten rounds of sex even after using up all the condoms. (Kawakami Nanami, DVAJ-493)

During a company drinking party, Nanami learns that her subordinate is a virgin. She jokingly tells him that if he abstains from sex for a month, she'll let him have his way with her. A month later, her subordinate actually does abstain, and Nanami, who promised him, experiences multiple orgasms from his penetration...