Satomi played the good wife, yet in her heart, she always wished her husband would leave early. Having entered into a forbidden relationship with her own child and drowning in the pleasures of transgression, Satomi's mind was filled with thoughts of her son's penis. She couldn't stand it, not even a second longer. She wanted to insert her son's penis. Satomi's desire infected her son, making him hard as a rock. They played the part of a normal mother and son, suppressing their explosive feelings, waiting for that moment. And the instant her husband left for work...