Step-Mommy comes back home from her date, it didn't go well, and she's surprised to see you still awake. You stayed up waiting for her, doing your homework. Step-Mommy is happy to see you and you ask her for help, you have biology and you just don't understand the assignment. You need to work out where you came from, and step-mommy is ready to give you a hands on step-son on how you ended up deep inside step-mommy's belly, and how you spread her pussy, her legs wide open, moaning and sweating. If you want to know how she got pregnant, she needs your seed to show you.