I creampied my wife's mother

After the wife was forced to leave her house on a trip, she asked her mother to take care of her husband Ataru, and her stepmother Erika came to the house. However, Ataru was unable to welcome her honestly. For Ataru, Erika, who has a seductive charm, was not just a stepmother, but a woman. Until now, Ataru had desperately tried to suppress and hide her passion for Erica. Under the same roof with my stepmother. What's more, it's a perfect situation where my wife doesn't have any eyes. Finally, I reach my limit...