Elena, my sister who attends an all-girls school, has been staying home for about half a year without any clear reason. When I found out about her masturbation habit, I gave her a new toy to use, and seeing her with it, my brother's desires exploded! He stormed into her room and forced her into sex! Though initially bewildered, she gradually became compliant to my brother's play, falling into a submissive state. And so began my brother's training of her...
