There's no need for reasons or explanations when it comes to the erotic relationship between sisters. At first, the younger sister's advances seemed like innocent teasing, but things gradually begin to change. With innocent eyes, the younger sister seeks kisses, and the older sister can't bring herself to refuse. Her sensitive body is drawn toward pleasure—though she knows deep down that what they're doing is wrong, she finds herself pulled once again into lesbian sex. Saliva-soaked kisses never cease as they drench each other's bodies with their tongues. On rainy days, they press their wet bodies together, deepening their intimacy inside the bathroom. This forbidden time shared between just the two of them will never end.