Pregnant by my Step-Son

I'm in the bathroom taking a pregnancy test and it comes back negative. My step-son peeks through the door to get a glimpse of my pussy, I catch him and tell him to get out as I'm upset that pregnancy test came back negative. I Feel really bad so I apologise for getting so angry. I explain how I've have been trying to get pregnant for months and up to this point my husband (your step-father) has been shooting blanks. Suddenly, I come up with an idea. What if we have sex together and you get me pregnant? I mention how it would keep the marriage intact. I know you're hesitant and you mention its because you wouldn't know what to do since you're still a virgin, but what a better mentor than your step-Mom?! The thought of you being a virgin turns me on even more. To convince you, I mention how I would be in control and all the positives of me getting pregnant ie. boobs get bigger and you could have tons of pregnancy sex with me. Thus, you agree to impregnate me and allow me to take your virginity. Towards the end of the sex scene, my phone rings and it's your step-father! I make you put my g-string in your mouth to keep you quiet while I talk to him but as I am talking to him you fuck me harder and harder until you creampie in my wet pussy. 3 Months later... I show a bump as I am now pregnant. I am so thrilled and describe how you're the step-father. I then ask you to fuck my pregnant pussy and leave a creampie. I text your step-father whilst you're fucking me& the text reads: 'You are not the step-father'... Imagine if he knew who was!