両親が旅行でいない五日間、婚約直後の姉が俺の子を孕むまで種付けし続けた。 新川愛七

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A younger brother who has had sex with his sister for a long time. If I could stay in this relationship for a long time ... But he finally faces the reality of his sister's marriage, which he was afraid of. He used to avoid pregnancy and use contraception, but he no longer needs it. And for the five days spent alone with his sister, he seeks each other harder than ever and drowns in sex. Even if her sister gets pregnant, she will make her husband's child, so don't worry, she accepts her brother's sperm raw for the first time. The mind and body of the two who can't be separated as much as they do.