"...just make us able to get to my room unnoticed for now. We will deal with the other things later, because I am almost too horny to think clearly and I plan on using you all night long to fix that."
Titty managed to make it happen while she came from the thought of being used all night long as if she was just a sex toy.
"So are we good to go?"
Titty gave a quick nod. Finally ready to get the fun started, Rachel easily slipped past her family and into her room without making a single noise. Even her hooves stomping on the hardwood floors were silent. Upon reqching her room, she saw that it was slightly different than usual.
For starters, her door had been raised up 3 inches off of the ground, and a different style door was in its place. It was similar to a bulkhead on a ship, except not made completely out of steel. Stepping over the lip and into her room, the first thing she noticed was that her floor was now entirely sealed. No a single crack coukd be found. Along the far exterior wall, was what looked like a drainage grate. Upon further investigation, it turned out that it was a drainage grate, leading outside. All of her room's baseboard was also removed, replaced by the same material as her floor was made out of.
She figured that Titty had made her room water tight, and able to drain excessive fluids if needed. She sadly admitted to herself that if Titty hadn't done this, she surely would have destroyed her room's floor and walls, and likely flooded her home, causing a lot of damage. Well, she guessed that she better reward her little cow bitch for a good job.
"Excellent work Titty, however make sure to next time ask me before you act on your own. Remember that you are mine now. I control everything about you while I am around. Understand?"
"Yes Rachel, I will remember."
"Then what are you waiting for my little cow? My dick isn't gonna fuck itself."
"MOOOOOOOOO!!!!" Shouted Titty as Rachel suddenly slammed her cock as hard as she could into her pussy, not expecting the sudden explosion of pleasure, but welcoming it all the same. For the next hour, Rachel kept using Titty like a fleshlight, positioning in and out, in and out, in and out. Until her hooves were standing in a mix of milk, sweat, and cum that was over an inch deep.
Rachel had cum nearly 20 times. Her massive testicles doing their job, had kept her cum reserves full though. Every orgasm had primed the next one. On the other hand, Titty has cum well over 50 times, and this last one had been going on for the last 12 minutes. She was just endlessly cumming without a second of rest. She had long since stopped using words. Simply mooing occasionally from the pleasure. It wasn't that she could speak them, but that her mind had simply gone blank from the pleasure, and only was only capable of making simple noised at the moment.
Their transformations had finnaly reached the last few stages. Rachel was just about finished. Her legs were entirely that of a bull now. Same for her cock and balls. Her human pussy was now a cow's pussy. Her horns were fully developed. Her ears were bull ears too. Her body was now very muscular, but while still retaining a feminine shape, and a large round ass.
Titty was also nearly done. Her udder was completely developed and flopped around with every thrust, soraying gallons of her creamy milk out by the minute due to the force of Rachel's thrusts. Her feet were hooves, and her hands had been partially transformed into hooves as well, now only 3 fingered hoof-like fingers were left on each hand. Her tits were also enormous. And each was topped off with a thick cow teat for a nipple. All of her skin had turned white, and a few black patches were scattered about, really hammering in her cow-like form. She had a set of horns and cow ears too. And her tail was happy swishing from side to side as best it could around Rachel. Her tongue was now a complete cow tongue too, and she easily could lick many places that no human could never hope to. For example, she could lick her own teats without using her hands.
The very last change was currently underway. Titty's legs had become unbound and were now fusing with Rachel's. Once finished, she and Rachel would forever share their legs from the knees down. And while Rachel's knees remained normal, Titty's disappeared completely, allowing her legs to bend in any direction now without harm or resistance. Titty had lost all feeling in her legs a while ago since she no longer would ever need them. Instead, her body hightened her pussy's internal sensitivity and repurposed the extra muscles into better cock pleasing abilities.
"Hey slut, we are gonna take a break so I can show our new selves to my Mom. I am sure she is gonna love you."
"Moooooo!"
"Cute" Rachel said, as she rubbed Titty's head, enjoying the softness of her fur covered ears. Titty loved having her ears played with by Rachel and began mooing with delight.
"Mooooo!"
"Mooooo!"
"Mooooo!"
"Hey, can you really no longer speak?" Asked Rachel.
"Mooo-I ca-moooo" attempted Titty. Clearing her throat, she tried once more. "I can still Moooooo... I can Mooooo... I-Mooooo..."
"Hahaha, sorry, could you repeat that Titty?" teased Rachel. Everytime Titty began to soeak, she would thrust her cock into her, which she learned would always cause her to let out an invoulentarry moo every single time.
"I can speak Mooooooooooooo!!!" Quickly shouted Titty, finally beating Rachel's thrust before she was forced to let out another moo.
"Damn it. Ah well, it was getting old anyways. Hey get the door for me would ya. I can't reach it from back here." Instructed Rachel, pushing your tits into the door. It was true, because of you, she no longer could use her hands for a lot of things. You were now her forward hands. That meant opening up doors, picking up things in front of you, pushing shopping carts, etc... would always be your job from now on. However you were fine with this because of what she would be using her hands for instead. Milking you.
Oppening up the door, you actually are greated by a fairly attractive women, who was apparently just about to knock.