Dai, who knows nothing about sex, spends his days in pain, not knowing how to release his erect cock. At that time, I consulted my friend's mother, Momoko, who had always treated me well. Momoko, who knew her troubles, was confused, but secretly performed sexual acts. Then, Dai, who had lost himself in the initial stimulation and pleasure, pushed Momoko down with excessive momentum. Momoko shook her hips like a monkey and continued to climax with his cock stimulating the back of her vagina.