Your Step Mom get's back from a "girls night" with your friends Mom. She reveals that she told her that she brings men home from nights out and fucks them in front of her Son. To your Step Mom's surprise the thought of cuckolding her own Son turned her on. But little does your Step Mom know you already knew your friends naughty little secret, and you knew Step Mommy would love it so you have one of your Friends in the next room ready to fuck her for you to watch.
Step Mommy is a little apprehensive at first, but when she realises how turned on you are she wants you to explore this fantasy together. Step Mommy loves you and understands just how important it is for you to know what kinds of fetishes get that cock that she made hard.
Your friend bends your Step Mommy over the bed and fucks her in doggy, it turns you on so much seeing the pussy that birthed you getting pounded. Step Mommy wants you to enjoy it just as much as her, and encourages you to stroke that cock that she made for her. She is surprised at how big that cock is, she thought cucks normally have small wieners. Step mommy can't help but to touch it, she strokes your cock until you cum in her hand like a good boy while she gets pounded from behind from your friend.
You have a birds eye view of Step Mommy's pussy when she pushes all of that cum out just like she pushed you out when you was born. Step Mommy would love to do that again, and insists that we do it again with all of your mates who are up for it!