A brown-haired futanari character experiences penis growth in a sauna setting, with her growing member becoming the focal point of this AI-generated scene. The animation shows her touching her enlarging penis, while her retrousse breasts and sweaty body are visible in the steamy environment. The video includes sound effects and emphasizes the transformation of her huge cock from a flaccid state to full erection. This is a solo-focused piece that explores the concept of physical enlargement in a unique setting.