Fucking Mom's Friend, Mao Kurata, VEC-422

Because my mother was traveling and was left alone at home, her friend, Mao Kurata, came to help. She was good at everything, from cleaning and cooking to doing housework. However, she had too much pocket money, which was puzzling. When I asked her about it, she said, "Then let's form a contract," while reaching towards her inner thigh...