Des:Yuka has raised her son Kousuke all by herself. Although she harbors evil feelings towards her son, who gradually resembles her late husband, she is emitting her unfulfilled desires within herself. On the other hand, even though Kousuke secretly has a love for his girlfriends mother that is more than that of a parent and child, he spends his days hiding it. However, on the eve of his wedding, Yuka sees her masturbating and says, ``Its the last night well spend together as mother and son... and gently squeezes her bulging cock. However, the two of them cant hold back and are driven by a forbidden lust...