From squeaky clean to filthy sex friend

I never thought my little stepsister would ever stop being a little goody two shoes. The way she dresses. The way she acts. But once I'convinced her to let me teach her a few things.. about boys, and girls, and sex... I could tell she was really getting into her new role as a slut, just like her big stepsister. I just couldn't keep my hands off her pretty little pussy.... and that's when stepDaddy caught us. Smoking... and playing with each other. I was just teaching her a few things, I told Daddy, smiling as I got a great idea. He taught me everything I know about being a slut... so maybe we should invite him to help teach you, too... I suggest to my newly naughty little stepsister. Her little pussy is so horny, she doesn't even argue. Eager to have her big stepsister teach her how to jerk and suck their stepdaddy's cock. Eager to climb up on stepdaddy's cock and get fucked. Who would have guessed... MY little stepsister... From squeaky clean to filthy sex friend....