Preparations

The next few months fly by in a haze. You command Carrie to go to midwifing classes so she can help Cassidy deliver the baby you plan on pumping into her. Meanwhile, you and Carrie have moved from your small apartment into her mother’s house, where Elizabeth sinks deeper into her submission daily.

Although it took several days of beatings, she has finally learned the schedule you expect of her. I’m the mornings, she waits an her knees by your bedside until you wake up. Generally you will roll over, stick your flaccid cock in her waiting mouth, and drain your morning piss into it. If she drops any, a swift kick in the stomach reminds her to lick the remainder off the floor. Hard now, you roughly fuck Carrie awake, forcing mommy-**** to watch you **** her daughter. Afterwards, Liz is expected to go downstairs and make breakfast.

You and Carrie eat with Liz under the table, alternating between sucking your leftover cum out of Carrie, and sucking out your second load of the day. A few weeks ago, you decided Elizabeth was a little too heavy for your tastes, so she’s been on a cum and piss diet to help starve her smaller.

You’ve taken her off birth control and started feeding her fertility pills. However, you haven’t fucked her pussy since that first night, electing to **** her mouth and asshole instead. Carrie mocks her, reminding her that her stretched out pussy isn’t good for anything now, especially since she failed her own child. She films the **** as well: sometimes when you get home from errands, you’ll find her rewatching the videos and masturbating.

The videos served another purpose as well. Although you have fun torturing Liz, Cassidy remains the focus of your desires. You play the videos of you and Carrie abusing her mother on the TV in her dungeon cell 24/7 now. During the ****, you **** Liz to day horrible things; Cassidy regularly is fucked and beaten to the sounds of her own mother disowning her, saying it was worth her disappearance for you and Carrie to have moved in, saying she’ll just make another daughter to replace her. Despite the torment, Cassidy refused to break, and still puts up an amazing fight when you visit to take her.

One day during this, Carrie pulls you aside “ I’ve got a month left of my classes: I think it’s time!” She whispers excitedly. “It’s time to start our new family! Plus, I swiped some chemicals from the fertility center: they’re supposed to guarantee the baby is a girl! I’m so excited to meet my new sister and daughter!”

That night, Carrie went off birth control, and replaced Cassidys with sugar pills (you wanted it as a surprise torment for her). After forcing the fertility **** down Liz’s throat and fucking them down into her to be sure, you knew it was time to begin: Liz, broken as she was, screamed in ecstasy as you finally used her needy cunt. 6 months of torment, mouth fucking, and ass **** had kept her on the edge. Her pussy tightened as she came on your cock, and you punched her in the nose, hearing a sharp *crack* as you contact.

“Did I say you could fucking cum you old whore!?” You scream, slamming her face into the ground, causing blood to spurt out. Carrie came over and lifted her mother’s face, brushing her hair back as you pound into her.

“Shhhh, it’s okay mommy-****, you’re just not allowed to cum! Or scream. So let’s keep that mouth busy.” She stood to reveal the 15 inch, baseball bat width strap on mounted to her waist. Through, bloodied eyes, Liz sees the rod and starts panicking. But she has no real will to fight, and Carrie grabs her broken face and starts slooooowly feeding the dildo down her mom’s throat.

Liz had lost a lot of weight from her diet of solely cum, so once the dildo was deep enough in her, you winked at Carrie. At the same time, you both stood up, bringing Liz up into the air with you. She hung there, blood dripping from her nose and teeth, suspended on cock and strap on. You and Carrie find your rhythm, throwing your mommy-****’s emaciated form back and **** violently. She can’t breath past the dildo, and starts to go limp just as you feel your cum rising. You pump her full of a massive cumshot right as she passes out from lack of air. Her limp form slides off the invading poles with a wet *shlik* as she falls to the floor. Carrie quickly slams a plug into her cunt to keep your precious sperm in. “Mmmm, my turn!” She says, excitedly.

Tired from the ordeal, you fuck Carrie slowly, sliding her on your cock while watching a movie. You cum several times in her over the course of the night, and your cock stays buried in her cunt even as you sleep, only popping out to deliver you morning piss to mommy-****. “Now that you’re having my baby, you can have one normal meal a day” you tell her, as the trickle from your cock slows and she swallows the last drops. She beams with happiness. Having your babies is a reward! She now knows if she can stay pregnant, you won’t hurt her as much, and she is happy to do whatever it takes to make that happen.

Satisfied with your progress, you head out to the dungeon: time to plant a third baby in this cumslut family.