愛する夫と義父の3人で暮らしていた人妻「詩織」。淡泊な夫のせいで欲求不満は募るがそれでも幸せな日々だった。しかし、豊満な肢体に欲情していた義父にある日突然襲われてしまう。1度だけで終わるはずもなく、ヤられ続ける毎日。妊娠危険日も関係なく中出しされイカされる日々にいつしか人妻は…。

Shiori is a married woman who lives with her loving husband and father-in-law. Although her husband's indifferent attitude makes her frustrated, she is still happy. But one day, her father-in-law, who had been lusting after her voluptuous body, suddenly attacked her. The days of being fucked and cummed on without regard to the danger of pregnancy....