Something happened on a trip with a childhood friend who was more like a male friend than a woman. The toy Motoka had secretly brought along was discovered, creating an awkward atmosphere. Then Yumi started joking around, suggesting they try it out, but even the slightest touch elicited an erotic response. The more extreme the situation, the more feminine both of them became, and the more erotic they became, becoming increasingly cute and nasty! They drooled the whole time, using their long tongues...