[Mizuarai no kai] Onaneta Kaa-san 4 (Kanketsu Hen) Masturbating to Mom 4 (Final Chapter) My Son's Plaything [Full Color] [Kyuulab]

A curvy mother in a fitted pencil skirt and heels ends up on all fours, cheeks flushed, as her role as her son's personal plaything reaches its final chapter. Sweat-soaked rides on her boy's lap, deep-throated worship in the family bathtub, and a heart-stopping close call when her husband knocks at the bathroom door force her to stammer excuses about 'taking long baths' and 'exercise' while still trembling against him. With pregnancy already taking hold and her marriage hanging by a thread, this full-color finale pushes the cheating mother to the very edge of exposure.