You've always had this weird obsession with pregnant women and now that your own step-mommy is pregnant, things are.. getting a little awkward. You have these conflicting feelings.. should you really be getting turned on over your own step-mommy just because she's now pregnant?! Of course not.. but that doesn't stop your dick getting hard every time you catch a glimpse of her huge round belly! You imagine how it happened.. her getting impregnated.. what position was she in.. did she cum hard when step-daddy ejaculated inside of her? She is so open around you, so unbelievably honest and unguarded about her sexual problems that she doesn't even realise she's turning you on! Asking you for an innocent foot rub whilst she just lays there with her tummy out, moaning about how good it feels.. complaining that your step-daddy doesn't give it to her anymore now that she's pregnant.. and how fucking HORNY she is all the damn time.. holy fuck.. and thats when her toes brush past your erection and one thing leads to another and.. and.. before you both know it you are in the throws of a forbidden taboo encounter.. her mouth on your cock.. begging you to fuck her.. her 8 month pregnant stomach pressed against yours as she grinds her pussy down on top of you.. balls deep inside your step-mommy.. her desperate to feel you cum inside of her.. satisfy her pregnant horny desires that your step-daddy won't.. as long as nobody finds out, it'll be a secret forever.. a taboo secret that you'll always share with your step-mommy.