That JAV

Himori and Arisa are a couple who have just started dating and are having a study session at Arisa's house. Arisa's mother, Yurika, is kind, beautiful, and wears breast-enhancing clothing, which excites Himori even though he knows it is her mother. While Himori is on his way to the bathroom, he peeks in on Yurika's intense masturbation. She masturbates as Arisa, calling her own name and teasing her own pussy. As she watches her mother masturbate, she herself struggles with her erect cock, but ends up not being able to ejaculate. He returned to his room in a state of agony, but all he could think about was Yurika.