My son's friend keeps getting made to cum because of his uncontrollable, super-extreme sex...

My son brings his friend Kosuke on his way home from club activities. Maiko serves him homemade food, but notices her gesture peering into her chest... Later, Maiko becomes aroused by the sturdy nature of his cock, which she accidentally sees, and ends up eating with a mischievous attitude. When she had a relationship with her son's friend without thinking too much about it, Kosuke becomes addicted to pleasure he has never experienced before and continues to seek pleasure over and over again. Eventually Maiko's body couldn't stand her as she was so violent and tough that she was so vigorously involved...