My family's bathroom broke down while I was visiting, so I borrowed one from my neighbor, Ai. Grateful for her kindness, I soaked in the tub alone when suddenly, she walked in completely naked! I lost all reason at the sight of Ai's naked body, which I'd admired since childhood. From that day on, until the bathroom was fixed, Ai and I indulged in short-time, discreet sex sessions in the bath.