You're on your way to visit your step-sister for the weekend and step-mom calls her to tell her to look after you and not get into any fights. Little does she know that your step-sister's become a bit of a slut since she moved out and she quickly makes her moves on you too. One thing leads to another and you end up getting into more than just a tussle. When you get home, step-mom immediately senses something's happened but you're reluctant to admit it. After persistent probing, you blurt it out. Your step-sister says you've got a big cock, but you want a second opinion. Step-mom can't believe what she's hearing and seeing as you pull it out to get a second opinion. Once she gets herself together, she gives you a lecture on how wrong this all is but she doesn't blame you, she blames your whore of a step-sister for leading you astray. In the meantime, maybe the way to knock some sense into you is to treat this like that time your step-parents caught you smoking. Do you remember? They made you smoke 3 whole packets and you soon learnt your lesson never to smoke again didn't you?