I am the only one allowed to have sex with my stunning stepsister - a sexy redhead

I have a strict rule in my house - no one is allowed to have sex with my stunning stepsister. And as much as I'd love to fuck her, I respect that rule. But when she's away, I can't resist the temptation to indulge in some naughty fantasies about her. Recently, I've been fantasizing about my stepsister's sexy red hair being wrapped around my cock, her tight pussy taking me deep inside. It's a sight that's too hot to resist. So, when she's not around, I sneak into her room and indulge in some self-pleasure, imagining it's her. But nothing compares to the real thing. When she's around, I can't help but fantasize about fucking her right then and there. It's a dangerous thought, but one that's too tempting to ignore. I just hope I can keep my cool and resist the urge.