Yes she is

Jennifer was still cooking dinner, Sarah walked in first with you behind her. With how Sarah reacted and acted without you actual giving a verbal command. Just used pure raw emotion and strong feelings. You felt your mom should be okay with it. With you fucking your virgin sister and impregnating her. Sarah spoke up first. “Mom, Adam and I would like to say a few things to you.” As Jennifer finally put the pot roast into the oven. Then turns around and says “Sure what is on both your minds.” As she smiles. Sarah looks at you then at mom then says “We want you to have one of his babies, but then have your tubes tied.” Jennifer looks at Adam and asks “Is this true Adam, you want me to have one of your babies then get me fixed?” Adam responded with “Yes mom, just one baby. And I won’t mind continuing to please your cunt.” Jennifer cried a bit “Ah Adam, I will be glad to bare your child. And that you can please my cunt when and how you like.” Sarah had to say “Mom!” Jennifer replied with “Well a son must provide.” Toward which Sarah says “Okay, must provide.” Jennifer then senses the feelings your mind is broadcasting. “Have, have you two. Been. ADAM!” Sarah spoke up “No Mom, we haven’t. Just that we spoke and agreed he should give you at least one baby. And that I would gladly take the rest.”

Jennifer calmed down after a bit then asked “Adam, are you sure you want to impregnate me and your sister? Adam had to respond “Yes mom.” Jennifer cried a bit after hearing this, then says “I never expected to be a grandmother. I love you both!” Then Jennifer kisses Sarah and kissed Adam but gives him some tongue as well. “Adam has two women in this house in which he can please.” Sarah then says. “Yes he does!” as she turns towards you smiling. Adam now wanted to collect on his sister’s virginity. So Adam says “Sarah why don’t you go upstairs and get your ovaries ready!” Sarah look at him “Now?” Adam then says “Yes Sarah” Jennifer then had to speak up “Sarah, listen to your brother, he wants to fuck your brains out and get you pregnant. Go ahead, you don’t need my permission.”

Sarah smiles, "your room or mine Adam.” Before Adam could respond Jennifer spoke up “You both will use my bedroom from now on. I will sleep on Sarah’s old bed. After all, Adam is the new man of the house.” Adam responded back with “Thank you Mom, uh I mean Jennifer. Sarah I will be with you in our new room shortly.” Sarah smiled, hugged her mom “Thanks for giving me and Adam your bed to mate on.” And Sarah happily walked to her new bed. Jennifer spoke up “Thanks dear for calling me Jennifer” as she smiled. Still seeing you haven’t left yet “Is there something I can do for you Adam?” Adam then says “Jenn, after dinner your next.” Jennifer responded with “Oh dear, I am. What could a mother do?” Adam then responds with “Get her ovaries ready as well." Jennifer in delight speaks “Oh dear me, yes baby. I’ll have them ready for you. You want to be sure I get pregnant don’t you?” Adam respond back “Yes Jenn, I want to be absolute sure. Even if it takes weeks.” This gets Jennifer wet “Oh my” smiles, “Adam go to your sister, she need you to turn her into a real woman.” You and your mom kiss again. After the kiss you go up to what is now you’re new room.