Three options remained.
Service Slave
Pet Slave
Bondage Slut
Searching on the internet, he concluded that while it might be night to have Kelsey become his maid and waitress he would rather she be in a more sexual role, so now there was two.
Knowing what bondage was but without experience made this a lower choice once more.
Which meant there was really only one choice.
Pet Slave
Again looking the type up online he found that this type of BDSM submissive type preferred to act like an animal, or in some rarer cases actually going to far as to dress up as the animal of choice.
Coupling this with the system store, Nox found his blood boiling with lust.
With her true fall he had plenty of points with which to shop.
So he got to work assembling her new outfit when along with him or just the girls.
Finally hours later well into the night Kelsey finally roused only to be shocked, she felt her eyes were drawn to Nox.
He had not only made her cum, but had made her admit it to his face.
She had made a challenge and he not only accepted the challenge he overcame it.
Now she could only look at him with misty eyes, she knew she had a complex and he had broken it, she was in love with him, utterly in love with him.
Seeing him just sitting there at his table smirking, she slipped from the bed and sultrily walked up behind him draping an arm onto his chest from behind before kissing his cheek.
"What are you doing lover?"
"Who told you, you could stand?"
Thump, her legs gave out and she found herself kneeling before him.
"Nox?"
"Don't say my name, you made a challenge you lost, that make you mine now, and I don't need a girlfriend right now let alone you."
"But... but you won't get rid of me will you?"
"Heh, no of course not, I still have a use for you after all."
A smile crept on her lips, he needed her! <3
"But I don't need you as a human for now, so I'll have you be my pet kitty instead."
"huh?"
Flash, in an instant an outfit appeared before her on the ground, solid black and fuzzy complete with headress, it looked similar but utterly different to the slutty dressing Nox had Sarah wear.
"Put it on."
As confused as she was she found herself unable to disobey him, as she quickly grabbed up the outfit and with some difficulty began to slip it on.
Her arms, legs, and most of her body were covered in this skin tight costume that left only a crevice for her slit and ass to remain expose and holes for her tits to stick out completely from the front of the suit.
Lastly was the hood, which was hardest to get on as she needed to first bundle her hair up before she could pull on the hood, once she was finished she returned to her seated position but she felt... different now.
When she knelt she shivered a little like someone was tickling her legs but that wasn't possible she was covered head to toe in this outfit now...
Even her mouth was covered by the muzzle of the suit, which gave her face a more feline look, although the mouth did open and close along with her own.
"Meow."
Turning at the sound Nox looked down on her, as she tilted her own head.
She clearly had said master but it came out as Meow instead...
"Good Girl. Though you seem to be missing something, but don't worry we can fix that stand up... eh eh eh, but like a kitty would."
She leaned forwards getting on all fours, as she raised and exposed her ass.
Nox moved around to her rear.
She kept looking forward, at least until she felt some cold on her ass, causing her to whip her head around to see Nox, kneeling behind her one hand on her ass cheek while his face was close to her.
"Meow?"
Again another meow sounded out, she wanted to question what he was doing but was unable to vocalize it as anything other than meow's.
Then the coldness started to spread a little but she also felt the warmth of his fingers as she spread the cold on her backside.
He was going to fix what was missing?
What was missing?
'Ahhhnnnnn'
At first she felt a little pressure then a moan escaped as she felt something enter, but this was different, it didn't feel like her pussy so that meant...!
"Meow!"
She tried to move but his hand on her ass cheek gripped her tighter holding her in place.
"Don't move, or I'll have to punish you as a bad girl."
Shudder.
She stopped resisting and just stayed there.
The inserted thing started to move and wiggle identifying itself as one of his fingers.
He had a finger inside of her asshole right now!
Then the pressure increase and she felt a second finger penetrate her dark hole.
He started to piston his hand, finger fucking her ass.
As much as she told herself this would hurt, it didnt' instead it felt great, her master was finger fucking her.
She was an animal and he was treating her like one!
<3 <3 <3 <3
After working the lube into her ass, and loosening her hole enough he extracted his fingers only to replace them with a hard metal plug that slowly was pushed into her ass, bit by bit her ring widened taking in this foreign invader, swallowing the bulb until the end was resting firmly against her cheeks.
"Go ahead you can check it out."
Hearing her masters words as her senses returned to her, feeling herself being full of... something she reached back with her paw hand only to find that instead of the skin of her ass she could feel something furry hanging down, looking down through her legs she could plainly see a tail hanging between her legs.
A tail!
As she exclaimed this in her head the tail twitched.
Oh my god!
I really am masters pet now!
The very idea caused her slutty pussy to wet with glee.
She wiggled her hips in an attempt to entice Nox, which he was all but ready to oblige.
He took her 'kitty style' down on the ground but waited to let her cum for when she was peaked for a while, and then tugging on her tail which did not come out, but instead sent a wave of sensation different from an orgasm to be set loose followed by a rush of an actual orgasm, then the flooding of her womb by his massive sperm load.
Having broken in his new pussy ;)
Nox set to right his own clothes before returning Kelsey to the prison for the night.