Her younger sister Ria is a tall, slender beautiful girl but a bit of an airhead. One day, while Ria was taking a nap, she flashed her panties, and even though I knew it was wrong, I couldn't help but stare. Then, when Ria woke up, she whispered with a smile, 'Do you like looking at panties?' From the next day on, taking advantage of her absence, I was seduced for three straight days.
