In this legendary Japanese scene, Yukari Orihara plays a devout sister who's always put her brother's needs before her own. But when she discovers her brother's secret addiction to porn, she can't help but feel a stirring within her own loins. As she sneaks into his room to watch the videos with him, she finds herself becoming increasingly aroused by the huge cocks on display. One night, as they're watching a particularly intense video, Natsu can't take it anymore and pounces on her brother, demanding that he give her the same satisfaction she's seen on the screen. The result is a passionate, forbidden encounter that leaves them both craving more.