"You want more, don't you?" Despite his mother Yumi's protests, her son Shinya pushes her pussy open and inserts his rock hard cock. The two of them had fallen into a relationship that should never be allowed, but they were forced to live apart due to Shinya's work. After meeting again for the first time in a year, the two of them quietly but passionately desire each other. Perhaps because they are father and son, or perhaps because they love each other, their bodies are extremely compatible. Yumi's ecstatic pressure point is hit by his cock and she climaxes, but Shinya's attack, in his prime, is not over but rather intensifies. Yumi climaxes again, and Shinya inserts it again. Yumi, drowning in the pleasure of arching her back with endless piston-like thrusts, exceeds the limits of her climax!