A plump mother named Yuri Honma indulges her insatiable sexual desires by sucking off both her son and his friend's cocks while they bathe together as usual. She enjoys watching her son grow up and gives him a sensual massage using her tongue, breasts, and hands. As her son's cock grows bigger due to puberty, she pleasures it with handjobs and blowjobs until he cums hard. Unable to control her lust any longer, she orders her son to bring over his friends without knowing that one of them would be visiting unannounced. This unsuspecting friend finds himself being teased by Yuri's slithering tongue while locked in a passionate embrace; she shows off her voluptuous body which arouses him enough to make his virginity disappear under her skilled mouth. Next, she rides him in a tight cowgirl position, milking every last drop of his creamy seed before moving onto another round of pleasure with her soft, warm breasts. Finally, after witnessing their intense lovemaking session, she joins in on the fun and initiates a threesome involving all three participants - including herself! Her goal? To rejuvenate herself with young cum and experience multiple orgasms alongside these two virile men.

自分の性欲の赴くままに息子とその友人のチンポを喰い散らかすむっちりママ。いつも通りに息子の成長を楽しみながらの混浴。息子にベロでオマンコ、おっぱい、全身を洗体させる。成長した息子のチンポを手コキ、フェラチオでガッツキまくる。性欲が収まらないママは、息子に友達を連れてくるように命令、何も知らずに訪れた息子の友人に蛇のように舌なめずりをしながらロックオン、豊満なカラダを見せつけ勃起を誘発、童貞の友人のチンポをしっかり舐め上げ、更にチングリ騎乗位で喪失、濃厚ザーメンを搾り取る。勉強中の息子の友人に肉体を使っておやつを食べさせる、クリームたっぷりの熟れた軟乳を舐めさせ欲情、そのままチンポを包み込むような優しいパイズリで癒やしてあげる。更に息子とのセックスを見せつけ3人でのトリプル交尾が行われる。ママは若いザーメンで若返りを狙うのだった。