My brother is a handsome, wild-type guy who always gives off a strange vibe. He's a bit of a pervert, with a distinctly sadistic side—and I'm deeply attracted to that dominant, S nature of his. I've been longing to suck his cock, but he won't let me—instead, he promised that if I complete every task in his "M-Domestication Project," he'll reward me by letting me suck him off. I told him I'll finish every single part of the project, so he better keep his cock hard and ready for me. I made it clear he's not allowed to have sex with other girls or jerk off while he waits.