Lots of girls want bigger boobs, including Cassandra. She bought some lotion that promises to increase the size of her boobs, but she needs help to rub it in and she wants you to help. As her step father, you find this a little odd, but you comply. Her small, puffy titties are in your hand as you rub the lotion in. She is thankful and she informs you that this might need to be done a few more times. Now you find yourself becoming aroused as you continue to rub the potion into her titties and your step daughter notices as well. Cassandra's solution is to take care of your boner before her step-mother gets home. If you take out your dick, she promises to help you jerk off. She knows that you cannot fuck her, but she also knows how desperately you want to. She puts her hand into her panties and rubs her pussy, totally turned on from watching you jack your dick.