My girlfriend's mother, who has an excessively high sex drive, is exactly my ideal type. I secretly give her my erect penis time and time again, without telling my girlfriend… (Mito Kana JUR-766)

My girlfriend, whom I started dating six months ago, invited me to her house for the first time. I was greeted by her mother, Ms. Kana. She was extremely beautiful, with an outstanding figure… Seeing her alluring figure in her suit, I completely forgot about my girlfriend, a mix of nervousness and excitement welling up inside me. Ms. Kana was an insurance agent, and while making erotic physical contact, she tempted me, saying, “Kenji, shouldn’t you be thinking about the future?” Faced with the allure of a mature woman, my groin became hard, and Ms. Kana noticed this. To avoid being discovered by my girlfriend, she helped me relieve myself, giving me a moment of pleasure. From then on, every time I went to my girlfriend’s house, I would secretly meet with Ms. Kana…