The film has 3 parts but the content is completely the same. After secretly hiding her sister's clothes in the shower, the brother took advantage of her time looking for things, suddenly rushed to bring his penis deep inside, causing her to not react and suffer in helplessness. Immediately after that was the apology and expression of the boys' long-standing reflections: they were nearly 30 years old without a piece of love to squeeze their shoulders, pity, sisters who had to take their virgin bodies to help their brothers feel sexual pleasure.