A married woman, impregnated by her husband's friend, indulges in unfaithful acts to quell her loneliness. (Shinna Yuki, VEC-583)

Since her husband was hospitalized due to injury, Yuki's sexual desires had been building up. Just then, her husband's friend, Tetsuya, came to check on her. He possessed a masculinity that her husband lacked, causing Yuki's lonely body to ache. After Tetsuya left, Yuki immediately indulged in lewd fantasies. "Tetsuya was just helping with household chores, but why am I doing this…?" Even as guilt tormented her, her fingers kept reaching for her private parts. However, when Tetsuya returned to retrieve something he had forgotten…