YUKA, my girlfriend's older sister, looked irresistible from the moment we met. She happens to like my looks too, and begins seducing me whenever my girlfriend turns away. Gazing through dreamy eyes, she pushes her long tongue into my mouth and floods it with saliva. Her wet tongue coils around mine like a living thing, drawing in both my body and mind. The longer we can hide it from my girlfriend, the bolder our forbidden kisses and secret sex become, until I am completely powerless to stop.