Taking things in a more... "virile" direction

It was hot watching her little sister, The red head was a true goddess of ass at this point. with every slight shift of her muscular swollen backside there would be this delightful cascade of ripples, like a wave of energy sending from one side of her meaty, strong physique to the other. There was a full five second delay from one side of her ass to the other as the shifting of one overly wide hip sent another ripple, slow and languorous, sometimes even making an audible slap as contact was made from one cheek to the other over the tiny little string devoured into the space between those cavernous cheeks.

and between it all her sweltering honeypot still shown through. It was cute and hot and Karis could only imagine how tight and gooey her sis' insides would feel with her fat cock inside...

But a more perverse side of her wanted her sister to be even more "bottom heavy" in a fashion.

+futanari +(gigantic horsecock with big black balls:1.3) +full-package futanari

She'd been in one of her customary poses, one meant to show off her fat pussy to her sister. With her ass raised and juicy lips all but begging to be stuffed to the brim, she began to change. Beneath the swell of her protruding lips something thick and gnarly started to extend and grow and grow... and grow... one long pulsing rod slid out of her skin, dark and veiny, it prodded into the floor before sliding out and away from Karis' perspective behind her, disappearing from view as one then two round balls grew into one massive sloshing black sack.

Lizzie shook through the whole ordeal, salacious ripples cascading not only through her ass but also the newly rotund testes swinging far below. Karis could hear the gasps, see the beads of sweat appearing on the fat cheeks as her knees quaked from what must be a mind-bending transformation. Lizzie looked to be barely able to be standing yet she still presented her fat ass, those gargantuan black testes dragging on the floor in the most lewd real life

Karis didn't care anymore, she was openly stroking her dick now as she sunk further into her depraved thoughts, pulling on some of the slightly more wild stuff she'd jerked off to.

+huge horse pussy +puffy black anus

Lizzie shuddered as her backdoor swelled out from the space between her juicy toned cheeks. It popped out into fresh air, steaming hot and sweating with what Karis thought could be only need. Her pussy below also grew big and plump, swimming in effervescent sticky fluids that pooled on her heavy balls below.

The redhead shuddered and shook on the floor, tangible need sweltering off her gasping, shuddering toned form. Her ass quaked, knees just barely keeping propped up, her face firmly planted on the ground where her cock head pressed against her face.

The air was hot and heavy with their breathing, a warm pungent filth filling their nostrils as more and more of Kari's natural musk permeated everything, seeming to sink into their skin as things seemed to just endlessly grow hotter and hotter.

Needless to say, Karis was tired of just staring and not doing anything, so she tossed her hard flopping dong aside typing as rapidly as her wet digits could make contact with the screen, one handed and not paying much attention to syntax.

+normal to fuck

A moment later Lizzie quietly moaned in bliss as something hot and hard pressed up against her eager swollen lips. She nearly collapsed from the barest touch, only staying aloft through sheer will. Her outside countenance hardly adjusted, or at least she tried to make it seem that way. She blinked rapidly, the bored, far away expression looking not so effortless as her eyes rolled and deep gasps kept pulling into her chest. Strong feminine fingers gripped her fat ass, digging in deep to the bouncing, shaking flesh. The barest whisper of a moan slipped from Lizzie's mouth. She glanced back over the peaks behind her towards karis, her eyes glazed and wan at once as the older girl slowly pushed forward with a manic lust-filled grin.

They both moaned loudly this time as Karis filled her sister's huge horse-pussy with her own thick veiny dick.