It’s past your bedtime but you can’t rest. You peek in on Mommie and see her reading a book. She seems so engrossed in it that you don’t want to interrupt her.. Until you notice that she is moving her hand between her legs. Your own crotch begins to stiffen and your cock grows.. And she catches you looking! She draws you closer and explains about masturbation and why it’s healthy. She tells you that it’s good to touch yourself and she’ll even help you follow along. As she tells you to drop your pajamas, your immature cock is already swollen and dripping.