Mother's best friend

Saori, her mother's best friend, runs out of the house due to a fight with her husband. We decided to stay at our house for a while until it settled down. However, Koichi, who has never interacted with women other than her mother, is unable to take his eyes off Saori's big breasts. I wonder what it feels like, I wonder if it's soft... I'd like to massage it at least once. As her desires grow, Koichi is no longer satisfied with just stolen and sniffing, and peers at Saori's bathing...