Ejaculating for Sophia Jade

Today Sophia is studying for a test about the male reproductive system and the book is not really giving her what she needs to pass the test. Luckily for Sophia, you are there to help her with her studies. After all, Sophia is a hands-on kind of a girl. Do you mind taking out your penis so that she can have a close look? It really would help her. You are a helpful guy, so you offer to show her your dick and how you can make it nice and hard. What happens if you stroke it harder? Is there something that she can do to help you get harder? Sophia thinks that if you see her titties it will help you get hard.