Your slutty step-sister just arrived to stay with us during Thanksgiving. Much to our surprise she shows up with a big beautiful pregnant belly. As a kinky married couple pregnant women turn us both on. You're sister is a slut that will spread her legs for anyone. She doesn't know who her baby daddy is. On the plane ride over she hooked up with someone on the plane. I have a private conversation with you that I want us to make a move on her. Even though she is your step sister. I show her to the guest bedroom. We sit together and admire how comfy the mattress is. I offer to help your sister Kelly out of her clothes. I remember how difficult it was getting undressed while pregnant. You're still in the room and watch me get your pregnant sister undressed before your eyes. I begin rubbing her tits and exploring her body. I milk my tits on her belly. Then I'm eager to taste her pregnant pussy and begin to give her oral. You start to jerk off while I'm eating her pregnant pussy. I tell you to come closer and watch as I finger her wet cunt. I watch as you fuck your pregnant sister raw. I'm so horny watching as my sister-in-law cums on my husband's cock. You fill up her pussy with your huge load. I then hop on your cock and beg you to creampie me next. Thanksgiving dinner this year will certainly have an interesting dynamic...