Tonight, I'm alone with my wife's friend...

Yuji is a little excited when Mako, a senior member of his wife Haruka, suddenly comes to stay overnight. Her huge breasts, a slender waist, and plump hips that can be clearly seen even when she is wearing clothes... Yuji's head is full of lewd fantasies! At that moment, Haruka decides to go to the hospital to give birth to her sister... Yuji and Mako are by chance alone. Yuji has reached his limit of patience, so he pushes Mako down without fail...