A mother trained by her two sons ~Organized incest and rape~

For some reason, Mr. and Mrs. Mochida decided to take in Makoto, the son of his brother and his wife. However, her son, Tetsuya, is not happy about this and becomes jealous of Makoto's good work, so he gets in trouble. Natsuki is worried about Tetsuya, but on the other hand, she is attracted to Makoto's kindness and before they know it, their bodies are on top of each other... However, after that, Makoto suddenly changed and began to humiliate Natsuki no matter where he was. Tetsuya sucks his furious cock out of frustration and anger after being made aware of this fact. Since then, the days of training where he is played with by his two sons have begun...