The 7th game of matrimonial betrayal from a Matures!
A wife and mother cheats on her spouse!

"You're sensitive here... does Hiro know your body like I do?"
Masato said to me as he teased my weak point.
Hiro was my husband. We were newly married and happy.
Until Masato had come back into my life. I knew him
when we were students. My husband was so tender...
But my body needed more. It needed...

[From DLsite English]