From Princess to slut

Starfire stumbled along, horrified as she heard the Billy's screaming and being eaten alive.
"Oh jeez..will you stop crying. you get used to it after awhile." Blackfire said, sounding bored.
"I..Oh.." Starfire sobbed.
Blackfire sighed, and rolled her eyes, well used to the sounds of carnage, having been the one to cause them more often than not.
they reached the throne, and Blackfire sat back on it, her legs spread open, and she looked down at Starfire.
"Well?" Blackfire asked, after a moment when nothing had happened.
"Yes Master?' Starfire asked tearfully.
"I thought i was pretty clear on what i wanted you to do."
"Um..you said you were going to feed me?" Starfire asked slowly.
"Oh for the love of..Lean forward and perform oral sex!" Blackfire yelled.
Starfire made a face and drew back.
"But..But we are sister and-"
What ever she was going to say was cut off, as Blackfire pimp slapped her.
"Are you calling you're empress a dog?" She demanded.
"N-No.." Starfire whimpered, a large bruise already forming on the side of her face, tears trailing down her face.
"You're nothing but a bitch, a female dog, to suggest that we are related is to call me a dog!" Blackfire explained.
"I..I'm sorry..Empress.." Starfire said softly, and then leaned forward.
She had heard of females pleasuring each other before, and had watched such a film with Raven, who got all flustered.
Truthfully, Starfire preferred men, and had little or no interest in men,but now she had no choice in the matter.
'How was it they did it in the movie..' She thought to herself, then gently kissed around the lips, looking up and giving the sluttish looks she could to her sister.
As her togue came out, and gently trailed on the outer lips, Blackfire clutched at her throne, her upgraded powers cause the stone to slightly crack.
"Fuck...you've done this before haven't you slut?" Blackfire purred.
Starfire nuzzled her nose agist her sister's nose, and then looked up to answer, then froze, recalling the dirty talk and moved back down and extend her togue, sliding it deep in her sister, wiggling it around.
Strong hands pressed agist the back of her head, and Blackfire was panting and moaning, grinding agist her face.
"Gooood puppy." she moaned.
As Starfire licked Blackfire's cunt, something odd happened to her, her nipples began to harden, and she felt herself getting aroused.
Without thinking about it, a hand drifted down, and she started to play with herself, moaning into her sisters cunt.
"Hey!"
Her bliss was stopped as with a yank of her hair, she was tugged up onto her feet.
"You don't touch you're cunt unless i tell you to slut!" Blackfire yelled.
"I..I'm Sorry empress.." Starfire said, blushing and shifting about.
Blackfire slid two finger into Starfire's damp snatch, and laughed at the way the bitch moaned.
"You love being a little whore don't you bitch?"
"I..I..ooo.." Starfire tried to think clearly, but was fingered harder.
"Answer me slut!"
"N-Noooo....I'm...not...a..a..whore!" Starfire yelled her body shaking as she was building up for a massive orgasm.
Blackfire's fingers popped out of her, and before she could think about it, her hands were tied behind her back.
"then you won't mind getting back to eating my cunt." Blackfire said.
Starfire whined, and found herself lapping away at Blackfire's cunt, desperate to get off.
by now, the crowd had finished with the Billy's and came over to watch, men whipping out their cocks and jerking it, Woman fingering themselves as there was no two person sex in the throne room without permission.
With a cry, Blackfire filled Starfire's mouth with her juices and cum, the Bitch lapping them up and then looking up, ashamed, and pleadingly.
"Awww, Does bitch wanna cum?' Blackfire asked, grabbing Starfire by her collar.
"Y-yes please.." Starfire whimpered, humiliated.
"You have to earn it..Look at all these aroused people..Since you're little show got them hot..why don't you go ahead and solve their problem?"

For the next hour, Starfire learned how to become a expert cock sucker and pussy eater, pleasing everyone in the room orally twice.
her belly was a little bloated from the massive amount of cum she had consumed, and her pussy was aching for something to fuck it.
A leash was attached to her collar, and Starfire was lead down the halls.
"Empress please...you promised.." Starfire whined, hating how she sounded..but X'hal she wanted to be fucked long and hard.
"Just a small tour first." Blackfire said, leading Starfire by the royal guards changing room.
As Starfire was led in, she noticed how big and hard all the guards were, and shook her head, ashamed to have been checking cock sizes.
"During my little take over, I employed members of the Hive for my strike force..You already saw what i'm useing Billy for. Gizmo was Killed during the assault, same as Kid Wykkyd but Jinx here.."
As she spoke Starfire spotted Jinx, Made into part of a thin wall.
Her ass and Pussy was on display for anyone to use over in the showers, while her head and tits were on the other side, by the toilets. her arms were pinned into the wall, and she had a blank look in her eyes, even as a Guard came up and popped her mouth open and took a piss.
"Her little mind snapped after I ate Galfore's head, and she hasn't recovered, so i thought i would put her to use in here."
Starfire gasped, horrified at the site, but as she watched, anther guard took to pounding Jinx's Pussy, and Starfire whimpered.
"Fuck up too often, and they'll have anther toilet slut." Blackfire said then tugged on the leash.
Starfire's mind was reeling as she was lead though the halls, stopping every so often to have her cunt played with to keep her nice and horny.
they came into a large room, formly used to house large beasts.
Starfire wrinkled her nose at the smell, and then yelped as large leg bone hit the ground and a low growling was heard.
"Mammoth suffered injury to his head,and as such, has the IQ of a dog." Blackfire explained.
He came forward now, naked and waving his rather large member around.
"Mammoth Horny! want pussy!" He yelled and tried to charge at them.
Blackfire sighed and blasted him back.
"Bad Mammoth! No fuck Empress! Punish you again!" She yelled.
the large brute whined and sat back, his hands pumping his meat in defeat.
"You'll learn to put up with him." Blackfire said with a wink.
tugged though the hallways once again, they came into the royal chambers. A lush and well furnished room, Starfire took note of a dog kennel in the bathroom, which door was open.
"Now then...lay down on the floor."Blackfire said, walking over to a dresser.
Starfire did so, and seconds later her sister was standing over her, with a dildo and a diaper.
"Something i forgot to mention. since you're just a dog, I can't exactly trust you not to shit and piss everywhere can I? So you'll wear a diaper when not being fucked. the diaper is only to be pissed in, if you have to shit, then let me know and I'll take you for a walk. If i find any shit ina diaper, you';ll be spending time with Mammoth."
Starfire was trly speechless, and by the time she thought of something to say, her sister had stuffed the dildo in her cunt, and had the diaper tapped up.
the fake cock felt soooo good, that Starfire moaned and whimpered, humping the air.
"Awww, does my puppy love her doggy diaper?" Blackfire taunted, rubing the front of it.
Starfire couldn't help herself, and nodded.
the once high and mighty princess was diapered, and having her cunt invaded by a dildo, with a belly full of male and female cum..
even if she got her powers back, sheno longer deserved to be a princess of tamerain
"E-Empress...I'm...I'm gonna.." She gasped.
Blackfire pulled her hand away, and Starfire couldn't get the dildo going enough to put her over the edge.
"P-Puhlease! Fuck me!" She cried out, desperate.
Blackfire smiled, and just pulled off her boots, and held a stinky foot to Starfire's face.
"kiss and lick it." Blackfire commanded.
without thinking about it, Starfire did as comanded, as Blackfire laughed and laughed.