Karin is self-conscious about her small breasts and longs for a more mature figure, so she gets her mother's permission to visit a beauty spa. Her treatment begins with an oil massage focused on her breasts and nipples. Each appointment brings more relentless stimulation until she finally cums. Later, the masseur reaches between her legs, and her newly sensitive body arches through repeated, leg-shaking orgasms. She asks to extend the session, sucks the cock presented to her, and cums repeatedly during penetration. In the end, she invites the masseur home for a special session that finishes with sex and a creampie.