Aya was extremely horny even at her age of fifty. She still had nighttime activities with her husband but wasn't satisfied after just one round; she would beg for more. However, recently her husband has been weakening, leaving her full of sexual frustration. Unbeknownst to them, their son secretly watched his parents through a hole in the wall. One day, when Aya was feeling particularly aroused, she brought home a delivery man and cheated on her husband. Their son witnessed this whole scene and even recorded it on his phone. After the delivery man left, the son showed Aya his phone, demanding that if she wanted something so badly, she should suck his dick...

綾子は性欲が人一倍強かった。五十路になった今でも夫と夜の営みをするが、一回では満足できずおねだりをする。しかし、最近は夫が弱くなり、欲求不満がたまっていた。そんな両親を息子は隠れて覗いていた。ある日、ムラムラしている綾子は、宅配便の男を家に連れ込み浮気をしてしまう。その様子も息子に覗かれ、携帯で撮影されていた。宅配便の男が帰った後、息子が綾子に携帯を見せる。そして、母に黙って欲しかったらチ○ポをしゃぶれと命令をした…