Start with her ass

You walked to a couch and sat on it, still naked and with your throbbing cock spewing pre-cum. Mrs. Mitchell managed to sit up in front of you, but did not notice her daughter taking off her clothes. She was still too amazed at her experience. With one hand she supported herself while the other was exploring her stretched out fuck hole, assessing the damage. You took the opportunity to detail Sarah as she stood naked, with her clothes at her feet. She wasn't as small as Mary, but she still wasn't tall by any means. She stood somewhere around 5'3", but she was just as thin as Mary was, making her look thinner and taller than she really was. Her budding boobs were already a D or DD cup, which was undoubtedly thanks to her mother's genes, and her ass looked firm and tight. The only thing that might have been a bit of a turn off to some other guy is the fact that her breasts were somewhat sagging despite her very young have; their weight and size forcing them to stretch more than any other girl her age, but you found it arousing. You loved the idea of how much more bounce these juggs would have. You could already imagine them swigging around madly as you fucked her.

You motioned the girl to come to you, and her mother only noticed her when she passed by. The young Sarah stopped right in front of you waiting for your command. "Turn around and sit on my lap, baby." Sure enough, the young teenager did as instructed. When Mrs. Mitchell saw your humongous pole standing up between her little girl's thighs she forgot about her own ordeal.

-Wait! You're not gonna fuck my bay with that thing! I don't even know how it fitted inside ME! You sure as hell are not killing my daughter with it!

"You will sit still, keep soaking in you cum drenched carpet and watch. Besides talking you won't intervene in any way." Mrs. Mitchell blinked when your command expanded in her head, then renewed her wailing. Just as she began pleading you to leave her daughter alone, you ordered Sarah to lift her ass just enough for you to line up and start pushing.

"Sarah, you will keep your eyes on your mom all along. You will never look anywhere else that in your mother's eyes until I am done with your body."

Already she was in a bit of pain as you pushed as mush as you could to **** your cockhead past her anus, and by the look on her mother's face it must have showed a little on her face. After a while of steady pushing you began to feel her tiny hole slowly being **** open, you grabbed the opportunity and gave a strong thrust forward with all your strength while pulling her down to you. With this new forceful attack, her tiny hole ripped open; sending a waves of pain and pleasure coursing through her body. Although you couldn't see it her mouth hung open, her bulging eyes were still fixed on her horrified mother and her face was red from the burning pain rising from her shithole. Although she found the sight of your monstrously big dick impaling her young daughter, Mrs. Mitchell began dripping at that sight and her nipples hardened as much as possible to your great satisfaction. After the initial penetration, you kept forcing your way up Sarah's chute mercilessly until she sat on your hips, with the full length and girth of your manhood inside her bowels. Taking pity on the poor girl, you made her love anal sex at an unreasonable point. So much that no amount of pain could stop her from loving it. Pretty soon she began trying to move on your rod, but the pain stopped her legs from raising her up. You slid your arms under her knees to raise her legs up as much as possible, and took a firm hold of her legs to be able to move her up and down. The young anal slut was crying and her face still expressed her great level of pain, but her moans and yelps were of both pleasure and suffering. After you settled for a steady pace, her mother noticed Sarah's pussy dripping juices. Her wetness only increased as you went faster and after a good fifteen minutes of anal destruction, she shuddered as her greatest climax ever surged through her body and took her reason away. You began pumping harder and faster when you felt her cum. the very hard churning and pummeling inside her **** her to expel a great deal of all the cum you had made her swallow earlier. Your cum was bubbling out of her gaping mouth and flowing down her already cum-coated naked body. Her heavy swinging tits threw some of the cum and drool mixture everywhere, even on her bewitched mother; and you finally came in a glorious orgasm that filled her as much as you had filled her mother before, slightly bulging her stomach too.

Once both your orgasms had subsided, you stood up with her still in your grip and with your cock sealing her perfectly, and walked in front of Mrs. Mitchell, positioning Sarah's hips just above her mother's head. With a large grin you slowly pulled out of her, slowly enough for the young girl to feel every inch of your member sliding out of her over stretched and over abused, destroyed asshole. Your cock came out with a wet "plop" and a great gush of your hot potent semen flowed out straight on Mrs. Mitchell's head and body. It covered in it, as happened to her daughter and ruined the carpet even more. You dropped the girl to her knees, on the carpet and let her mother take her and hold her in her arms to ease away the pain. The sight of mother and daughter, naked, cuddling and with their hair, faces and whole bodies caked in a thick layer of your fresh seed was breath taking.