Son・Masaru saw it... Every night, the beautiful mother・Yamaguchi Mari's crotch is open in the night...!! This was the masturbation act of his mother that Masaru had witnessed half a year ago. Since then, every night, he secretly watched from the shadows as his mother performed her masturbation ritual. Because he had been peeping at this sight every night, he began to feel sexual emotions towards his mother while she was doing housework. And the mother, unable to suppress her growing libido with age... One incident triggered it, and the mother started masturbating while whispering his name. Seeing his mother's voluptuous body like that, Masaru panted even more heavily than usual...
