Sif licked her lips as she admired the beautiful sight before her of her five conquered slaves, all com-pletely naked and leaning against a wall while sticking out their asses for her to inspect.
She stared at them for quite a while before reaching out and beginning to caress those glorious globes of flesh, squeezing and pinching them like a butcher with a piece of meat while her now fully housebroken slaves let her humiliate them in this way.
Even the fierce warriors Gamora and Nebula said nothing as Sif played with their bottoms, Sif eventually paying extra attention to her latest conquest before addressing her.
"You've been a bad girl Nebula." Sif told her slave, "Running away with my sweet Gamora. Trying to keep her tight little green ass all to yourself. Fucking that green bottom, even though you knew it was mine. And worst of all, you attempted to resist when I made you mine, instead of just surrendering to me like I know you wanted too."
"I am sorry Mistress." Nebula said softly.
"Not as sorry as you're going to be." Sif growled menacingly in her ear, before moving to Gamora. Or more accurately moving her mouth to Gamora's ear and one of her hands to Gamora's ass so she was groping both the proud warriors, "And as for you Gamora... you should have known better."
"I am sorry Mistress." Gamora softly parroted her sister.
"Oh, I promise you, you will be." Sif threatened softly, before using both hands to spread Gamora's butt cheeks and spit on the other woman's butt hole before doing the same with Nebula's ass. She then told them, "For the first part of your punishment, that is the only lube you will get."
With those words Sif pulled away, collected a couple of butt-plugs, and quickly returned. She was pleased to see that her fellow warriors were forcing themselves to relax, accepting they were both about to be anally penetrated.
In fairness the plugs were small, at least by Sif's standards, and considering the horrors that had been inflicted upon them, and they had inflicted upon others, Sif felt little sympathy as she rammed those butt-plugs into the waiting ass holes of Gamora and Nebula.
Of course, those plugs slipped inside those asses like keys into well-oiled locks thanks to the relentless anal sex Sif had inflict-ed upon them throughout their journey back to Earth, which was the main reason Sif felt no sympathy for her sluts, especially as they mostly cried out in pleasure.
Once those plugs were firmly inserted into those bottom Sif stepped back to admire her handiwork be-fore calling out, "Wanda, bind Gamora and Nebula to the wall."
Only taking one hand off the wall Wanda held it out and then as it and her eyes glowed red Gamora and Nebula were raised off the ground, and then gently flew to the opposite wall.
They were gently pressed up against it as rope came from as if out of nowhere to tie firmly around their bodies, leaving them help-less. Or at least as helpless as they could be.
Sif knew they could probably get out of those ropes, but instead they just squirmed and looked incredibly disappointed and pleadingly at their owner.
Ignoring them Sif announced, "For the second part of your punishment, you will spend the rest of the night watching, unable to touch yourselves, and each other."
"No Mistress, please-" Gamora began.
"Silence!" Sif snapped, pleased to see a pair of ball-gags appear from out of nowhere and immediately get shoved into the mouths of her fellow warriors, "Thank you Wanda. Now as I was saying, you will have to just watch this time, but if you're good I may let you top your fellow slaves. Maybe even fuck their asses."
That immediately caused Nebula and Gamora to become silent and stay still, which made Sif chuckle, before she turned her attention to the witch, "That's better... Wanda, my dear sweet Wanda... you get plenty of lube."
With that Sif dropped to her knees and after briefly teasing her pet with a few gentle kisses to her pale behind the stronger brunette pulled apart the ass cheeks of the physically weaker brunette and buried her face in between those cheeks.
She then started eagerly lapping away at Wanda's rosebud, causing the other girl to moan softly as she began giving her a long drawn-out rim job, Sif gleefully spending several minutes just gently licking Wanda's ass hole before trying to push her way inside of it.
She didn't get that far at first, but with a little persistence, and going back to spit on that tiny back door, Sif was able to force her way inside, and in the process press her face as deep in between Wanda's butt cheeks as it could go.
Wanda let out a soft series of gasps as Mistress Sif kissed and then licked her ass. Although she didn't gasp when Mistress Sif's tongue entered her butt. No, she cried out loudly in pure pleasure and pushed her slutty ass back against her Mistress's face.
Then for a horrible moment Wanda thought she was about to be punished for her insolence, but thankfully Mistress Sif seemed to like it from the way she smiled against the younger girl's butt, Wanda blushing slightly as she could feel it against her cheeks. Then she cried out again as Mistress Sif began to butt fuck her with her tongue.
Before Wanda became a slave of Sif she had no doubt that her ass hole would have been too tight for a tongue to enter it. Or at least for a tongue to penetrate her ass this deep.
But for the past month or so she had been relentlessly ass fucked by the far stronger woman, Wanda lucky, or unlucky, if she only took three butt fuckings a day because then her back hole might have the chance to close up properly.
This was one of those days, but thanks to all the previous butt sex she'd been having with her Mistress Wanda's ass hole took everything Mistress Sif had to give her.
Now completely addicted to getting her ass fucked Wanda hoped that this was a prelude to Mistress Sif pounding her butt, and it almost certainly was, but while Wanda would happily take anything her Mistress gave her she couldn't help be a little disappointed.
She loved the taste of Mistress Sif's pussy, and the pussies of her fellow sex slaves, and it would be a shame if her owner was skipping that part in favour of going straight to ass fucking.
Not that it was Wanda's place to complain, of course, but she couldn't help briefly feeling disappointment. At least until she felt her ass hole begin to stretch.
For a moment Wanda was confused. She was vaguely aware of Mistress Sif pulling away from her ass, but that was seconds before the penetration, not giving the taller woman sufficient time to retrieve a strap-on cock.
And the toy that entered her butt didn't feel quite as big as the ass-wreckers Mistress Sif normally favoured. Which was because Mistress Sif was shoving a butt-plug up her ass, Wanda realised just before she entered the mind of her Mistress and saw what she saw.
That was of course a butt-plug slipping past her anal ring and then deep inside her, Wanda finding both the penetration of her own ass, and how it looked with that plug sticking out of it, hot in a very, very perverted way.
"Well done Wanda, you took that like a good girl." Sif mumbled, mostly to herself.
Even though she could tell that those words were rhetorical without reading the superior woman's mind Wanda softly replied, "Thank you Mistress."
Sif grinned at this level of submission and then slowly got off of her knees while continuing to stare at Wanda's plug stuffed behind. Then she turned her attention to the tight little booty of Jane Foster and the big fat ass of Darcy Lewis, and licked her lips.
Then Sif debated whether to plug them too or not. Honestly she wasn't sure she could resist, but then she wasn't sure she could resist fucking those amaz-ing asses right away before giving them the privilege of eating her pussy, and more importantly give Wanda a reward for helping her to recapture Gamora and enslave Nebula.
On the other hand, it might be nice for Wanda to know the joy of penetrating Jane's little ass hole when it was all cute and tight.
After going back and forth for almost a full minute Sif ordered, "Wanda stand-up."
Timidly her pet obeyed her command, at first Wanda keeping her back to her so Sif could admire that beautifully plugged behind. Then Wanda cautiously turned around and nervously looked at her owner.
Sif rewarded her with a smile and then pulled the smaller girl against her strong body, lent down and gave Wanda a long, passionate kiss. Initially Sif kept it gentle as a way to encourage the nervous Wanda, but ultimately she just couldn't resist turning up the heat a bit, especially when she pushed her tongue into her sex slave's mouth.
By then her plan had clearly worked as Wanda was nice and relaxed in her arms, allowing Sif to feel confident as she made her intentions clear.
"I am very pleased with you Wanda." Sif revealed when she broke the kiss.
"Thank you Mistress." Wanda softly replied while staring lovingly at her owner.
"I would not have my precious Gamora back, or her sister Nebula, if it wasn't for you." Sif said softly, adding before Wanda could repeat herself, "When I was first... given my gift Gamora was one of my first conquests, and soon proved herself to be the most valuable addition to my collection, because she helped me keep my slaves, and helped me enslave new ones. For that, she was frequently rewarded. Now it seems to be you who is the most valuable addition to my collection, so it is you I wish to reward. Would you like to know how I intend to reward you?"