Punishing Tracy

"As for you, slut, you might have won but what you did just then was cruel, spurring me on like that. I think as punishment, I'll be taking it out on your ass like you made me do to your sister."

Tracy's gloating smile turns to a look of worry.

"I'm so sorry sir. Please have mercy on this cruel slut."

"No."

With this one word a look of fear takes over Tracy's face. To begin her punishment, you crouch down behind Tracy's ass and start working a finger into her tight hole and playing around with the inside of her ass. Reaching down you can stimulate her G-spot slightly and a wave of pleasure rushes over Tracy. This doesn't last long though as you work in a second, third and fourth finger into her asshole. She and Mia are still facing one another, giving Mia a full view of her facial expressions as you gradually work more fingers into her ass, stretching it out. After working your four fingers in and out of her well lubricated ass a few times, you finally deliver the final blow and **** your thumb into her ass so that you now have your entire fist inside of her. As you do so she sharply inhales, shocked by how much you're stretching out her rear.

Next you work in your knuckles, reaching inside like you're digging for gold. With your whole fist in her ass, her cheeks are spread wide apart to make way for her gaping hole. You slowly **** your fist deeper into her ass until you've managed to shove about half of your forearm in. At this point there's too much resistance and you can't **** any more of your arm into her rectum.

"Ohhhhhh fuuuuuck! Please sir, I'm so sorry."

"I'm not the one you should be apologising to slut."

"Oh fuck! I'm so sorry Mia. Please make him stop. He's stretching me out so much!"

Mia giggles at Tracy before saying "you brought this on yourself slut. I hope he makes it so your hole never fully closes again."

Knowing now that there's no easy way out of this punishment, Tracy stops her pleas and instead bites her lip in an attempt to not give her sister the satisfaction of watching her struggle.

Having worked as much of your fist into her ass as possible, you start pulling it back out and then pushing it back in again, slowly fisting her asshole. Bit by bit, you start picking up the pace until you're roughly punching her guts. Tracy can't help but squeal out anymore, yelling out every profanity in the English dictionary as her hole is stretched out like never before. As you continue roughly fisting her, Tracy's moans suddenly reach a new high as her pussy abruptly squirts all over the floor.

"Oh fuuuck!"

"Did you seriously just cum slut?!"

"No sir, I swear I didn't. I think I just pissed myself. You fisting my ass just made my bladder completely release. That felt amazing, but it wasn't an orgasm I promise."

"God dammit slut. I try to punish you but you just end up enjoying this depraved shit!" You pull your fist out of her ass and repeatedly spank her on the ass hard as you say this.

However, as you pull your fist out, her rectum comes prolapsing out of her ass producing a pink rosebud. Tracy feels her insides being turned out and reaches back to push them back in again, but you interrupt her before she gets the chance.

"Clean up your mess!" You grab her by the hair and pull her face down to the floor, at which point she sticks her tongue out. You forcefully rub her face all along the floor, mopping up some of her mess before releasing her hair and letting her clean it up herself. Tracy obediently licks up all the piss she leaked out on the floor, rosy cheeked from embarassment. Mia smiles down at her as you toss her sister around like a ragdoll. Her prolapsed rectum is still hanging out of her ass as she obediently cleans her mess.