The Story Your step-son opens up a video message that you sent him. It's around only around 5 minutes long, but it's you revealing some surprising news. You know it's been a couple months since you last saw each other at the family get-together, and something has changed in your life. Something wonderful, and something you weren't expecting, but you're quite excited it happened. You aren't sure how to say it, so you stand up to show a small swelling in your belly. step-momy is pregnant, and it's your babee, step-son. I know things got a little out of hand, but you're excited to start a family with your step-son. You can't wait to see how big your tits and belly will become, promising to show off your progression in the later term of your pregnancy. 6 months later, step-momy is about to pop! A video chat pops up on your step-son's screen, and he's greeted to the sight of his step-mother's beautiful face. You're smiling and positively glowing, happy to see your favorite man. After some small talk, you can't wait to show off how big you've gotten. As you struggle to get up, he'a surprised to see you clearly pregnant and ready to pop. Your clothes stretched around your fertile form. You know he can't keep his eyes off you, especially when you rub your belly. The babee has gotten so big, and loves to kick and roll around inside you. He enjoys watching you show off for him, and you know you'll be able to get him off. So you coax him into jacking off for his babee step-moma, and his real step-moma. You find it so sexy to be full of your step-son's seed, and love being pregnant with his babee. More movement and kicks from the babee catch you off guard, but you know he loves seeing it. When you know he is getting close, you tell him to finish for your belly. To cover it in the cum that got step-momy knocked up. Please use the name Josh for this custom. You can say it whenever you're talking about the step-son, but I'll let you choose how often.