A busty married woman visits the public pool in a flashy swimsuit, not caring about what others think. She's not the least bit Kokoro, so everyone's attention is glued to her. Excited by her appearance, the men call her out, under the pretext of a private lesson, and when they are alone, they reach out for her big breasts that spill out of her swimsuit. The married woman refuses at this sudden request, but she gives in to his aggressive pressure and gives herself to him, and even ends up in an orgy with the three men!