Yuko is tossed around by her son's unexpected determination to "I'll hold you until you're satisfied." It was certainly true that her frustration from the distance with her husband had reached its limit. Every time she is caressed, her dry body throbs unbearably. (But... not a forbidden relationship with my son...) Her son thrusts deep with powerful pistons to reassure the hesitant Yuko. Yuko, who becomes more sensitive with each orgasm, gradually falls into a trance state.