You've started getting erections and having wet dreams frequently so when step-mommy comes in to clean your sheets, she realises she's got to explain a few things to you. She tells you about how the white stuff, your semen, is meant to go in a woman's pussy. You're a little confused so she somewhat reluctantly decides to show you hers to explain. You ask if you can try it in step-mommy's pussy but she tells you absolutely not - step-moms aren't supposed to let their step-sons do that! But you're determined to see how it feels so you start sneaking up on step-mom and stuffing your cock inside her before she can notice. It feels so good you instantly ejaculate inside her and leave step-mommy with big sticky creampies all over the house. She softly scolds you and reminds you you're not allowed to do that to step-mommy. But you just can't resist and one morning she wakes up dripping with cum. You admit you filled her pussy with 7 big loads while she was in bed and step-mommy finally admits how excited it makes her too...