Fucking Mom's Friend Kawahara Mana VEC-603

Because my mother was traveling and was left alone at home, her friend, Kawahara Mana, 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...