After arranging to meet a woman's daughter through a dating site, I was shocked to find my best friend's girlfriend, Natsukawa Aki, standing there at the meeting spot. Holding the threat of exposing me to her boyfriend, I figured I might as well get her to grab my cock and headed straight to a hotel. But this seemingly pure and shy girl turned out to be a full-blown sadistic sex maniac! Before I knew it, it was already too late—I was completely trapped. Aki, now a ravenous female beast, pinned me down hard and even cuffed my wrists. "You're not allowed to cum until I say so, got it?" she said, tightly gripping my cock. Though stunned by her sudden transformation, seeing this wild side of Aki I'd never imagined before made me think, "Holy shit… isn't this kind of a lucky break?!" Soon I was wildly turned on. Right before my eyes: her masturbating, edging blowjobs, and tight fist-gripped cowgirl rides. Both of us were driven to unprecedented excitement by these depraved acts we could never do with our real partners, climaxing together in a fused, explosive orgasm. Whether you get off on being the best friend or the betrayed boyfriend, this ultimate, long-overdue NTR story delivers. Enjoy every moment.