My mom lets you have sex, your mom lets me have sex. Incestuous mother-son swapping. Wada Momoka, Okumura Hitomi. DTKM-030

The story of the second mother and son: The adopted brother is staying at his house because his house is being renovated. Although the son brought his girlfriend home, he can't forget his desire for his mother. Regardless of how many times his girlfriend and mother have sex, the neighbor sees this and discusses with him whether he wants to exchange mothers for sex...