Or more accurately, exposing both of her most private holes, one of them glistening wet with arousal from what they had just done, and what they were going to do, and the other just waiting for her. Oh yes, the deadly Black Widow who normally effortlessly topped her was offering up Sharon her tight little ass hole as a sacrifice to their mutual pleasure.
Even when Sharon was able to push herself to move again she couldn't resist teasing Natasha by sliding the tip of her cock up and down her ass crack, actually causing a groan of frustration to escape the other spy's lips, which was almost as big of an achievement as getting The Black Widow to agree to take it up her big beautiful ass.
Of course it wasn't that long after that before Sharon pressed the tip of the dildo against Natasha's butt hole and slowly started pushing forwards, both girls letting out a soft gasp as that tight little forbidden hole began stretching open. They then let out a simultaneous cry when Natasha's anal ring stretched wide enough to allow the head of Sharon's cock to slide through it and into her butt! Oh fuck! She was inside The Black Widow's butt! Oh fuck!
For a few long seconds Sharon just stayed like that, unable to even think as she was so lost in the moment. Which was probably a good thing, as while Sharon's cry had been of pure joy the one that Natasha had let out had seemed mostly of pain, and apparently it really had been a while since The Black Widow had taken it up the butt, so Natasha could probably do with some gentle treatment.
Especially after Sharon had wasted so much time after the initial preparation. So with that in mind when Sharon did eventually start pushing forwards it was slow and as gentle as possible, even pausing in between every other inch she added into her girlfriend's big ass.
The entire time Sharon paid close attention to Natasha's reactions. Well, as much as she could do when she couldn't see her face, and her eyes were locked onto the breath-taking sight of a dick sticking out of her crotch disappearing into The Black Widow's butt hole. Unsurprisingly after that initial cry she didn't get much, although Sharon was surprised that what she did get almost sounded like frustration.
The question was, was Natasha frustrated that she was back in this position receiving this pain and humiliation again? Or was she frustrated that Sharon was going so slowly? Whatever the case all she had to do was ask Sharon to stop, and she would, but in the meantime Sharon would concentrate on getting through this part to the pleasure she knew from experience was to come.
Natasha was definitely frustrated that Sharon was going so slowly, as a spy of her calibre didn't need such gentle treatment. Then again she couldn't claim she didn't enjoy a little teasing, and it felt like an eternity since her last butt fucking, so it was almost certainly for the best, but it was so frustrating that Sharon was going so slowly.
A few times Natasha even considered complaining, the only thing really stopping her being a desire to maintain her reputation. Well, that and while it wasn't exactly easy she could just about look over her shoulder in this position and see just how much her girlfriend was enjoying this. And that look of happiness on Sharon's face was worth all the frustration and humiliation Natasha was going through.
However even The Black Widow had her limits, and it came when Agent 13 finally completed the anal penetration. Which itself was wonderful, as Natasha could feel Sharon's thighs coming to rest against her meaty cheeks, announcing that her normally submissive girlfriend had buried every single inch of that big dildo into her bottom.
Natasha even liked the fact that Sharon took a few long seconds for them both to savour that fact. But then those few long seconds seemed to turn into minutes, and that just wasn't acceptable. Natasha needed to be fucked dammit, and she was tired of waiting. Oh yes, she needed to be butt fucked right now, and she was determined to get it.
"Fuck me!" Natasha moaned, "Fuck my ass, ohhhhhhh God Sharon, fuck me! I need it, I need you to fuck my ass. Mmmmm, fuck my big fat ass, oh shit! Ass fuck me, fuck me in the ass, oh yes, fuck that ass! Fuck it! Oooooooh yesssssssss, fuck me!"
Thankfully that was all it took to get Natasha what she wanted, even if it was annoyingly slow at first, and resulted in the dildo slowly leaving her rectum. However it was leaving with a promise of returning, and sure enough it did, albeit just as slowly as it left. Sharon then repeated this process, establishing a slow and steady rhythm as she officially began to butt fuck the infamous Black Widow.
Which was a fact which clearly pleased her given the wide grin on her face. Or maybe that was from Natasha continuing to spread her cheeks, giving her girlfriend the perfect look at her dick sliding in and out of her butt hole. Probably a combination of both.
It was definitely both for Natasha, as even though she couldn't see it the feeling of getting her most private hole used as a fuck hole was so wonderfully wicked, especially as it was by this woman who she truly loved. It was also humiliating and degrading, but that only added to Natasha's enjoyment, and helped her body to relax to the point where there was barely any discomfort, and then only pleasure.
That pleasure inevitably increased, and not just because of her naturally slutty back door. No, Sharon had clearly learned her lesson from all the butt fuckings Natasha had gleefully given her since she first popped her anal cherry, and was now literally using that information on Natasha's ass.
Natasha grinned, weirdly proud of Sharon for using her own techniques against her. And she only became more proud as Sharon continued that slow and steady butt fucking with machine-like efficiency, obviously determined to keep going until Natasha begged her to make her cum.
Although she'd be waiting a very, very long time, because as Natasha proved on a regular basis she had more stamina than Agent Carter would ever have. Something which Sharon would actually use against her, which surprised Natasha and made her annoyed and frustrated, but mostly proud, and feel she was such a positive influence on her fellow spy.
"Get on all fours and fuck me back." Sharon suddenly ordered, "Come on, mmmmm, don't make me do all the work. Ohhhhhhh yessssss, ride me. Ride me like the horny little bitch you are! Oooooooh yes, Maria told me all about how The Black Widow was a giant anal whore, oooooohhhhhhhhh, and your proving her so right Natasha. Mmmmm yeahhhhhhh, you're the perfect little anal whore, and after this you're going to be my personal anal whore. Oooooooh fuck yeah, you made me your butt slut, and I'm going to make you mine. You hear me Natasha? I'm going to own The Black Widow's big fat ass! Oh fuck yes, this ass is going to be mine. Mmmmm, fuck yeah, all mine! Oh yeah, when we're done you're going to have a Sharon's Bitch tramp stamp just to make sure you don't forget your place!"
As she spoke Sharon stopped in her tracks, meaning that Natasha would have to do all the work. Not that Natasha minded. At least not at first. In fact at first she really loved it, because in a way she was back in control of the situation, even if she was on all fours like a bitch. But then Sharon started lazily smacking her ass and taunting her even more, which would have been annoying if it was a man, but because it was the woman she loved Natasha weirdly liked it.
Although it also emphasised that Sharon was the one topping her, and Natasha was anally riding her dick like a good little submissive bottom. A fact which was reinforced when Natasha tried to get away with making herself cum early, the redhead barely getting to increase the pace before she was stopped by the blonde.
"Hey! What are you doing? Slow down! I didn't give you permission to cum!" Sharon yelled angrily, smacking Natasha's ass with everything she had until she slowed down, and then added with a smirk, "That's it, mmmmm, slow down. There's no rush. No, mmmmm, I wanna butt fuck The Black Widow all night long. Buckle up Natasha, mmmmm ohhhhhh yeahhhhh, because you're in for a real ride."
