Mommy comes in to see how you're doing with your homework, and you're having trouble with understanding erections. Mommy feels bad and doesn't want you to fail so she goes to get her dildo to show you how a man gets an erection! She's surprised hearing that you've never had one. Maybe you just haven't had the right stimulation yet. She explains that visual stimulation and physical touch helps bloodflow to the penis, making it hard. She explains this while stroking the dildo. You're mesmerized watching her caress it between her huge breasts, and you become hard. She notices and encourages you to take it out and stroke it to make it even more hard and helps you by showing you more of her cleavage and eventually taking her breasts out completely. Then asks if you want to learn about ejaculation, and where the penis enters a woman. She lays down and shows you where it goes then tells you to put your penis inside her... mommy wants you to get an A+ in this class after all!