18yo Stepdaughter Learns Cock is Better than Vibrator

Your stepdaughter comes to your wife with a problem. Since she is not home, you want to help her with whatever it is. Little hesitant, she tells you how her clit is sore from using a new sex toy. What is she doing wrong? Can you give her some advice? She is willing to show you how she does it and that should clear things up. Only thing is clear, you would love to use your real hard cock to fuck her tiny pussy and cum all over it. Does that happen? Only one way to find out.