Which had seemed a good idea when they left, to keep her girl nice and ready for what was coming later. Now that had backfired, and was only causing her girl more pain. Although impressively, the goody-goody was able to take everything she had to give without complaint.
In fact, MJ was indeed close to throwing in the towel on her girlfriend's behalf, before Sif finally stopped, and just admired her handiwork for a few long seconds. Then she went back to the groping, massaging some of the pain away, and causing Betty to coo happily. Admittedly, the older woman could restart the spanking at any moment, and MJ had been guilty of at least teasing that herself, when she was the one dishing out the spanking.
Thankfully that wasn't the case, and eventually Sif effortlessly picked Betty up, flipped her around so that she was sitting on her lap, and then kissed her gently. Something which had the tiny human hesitating for a moment, before melting into it. Not that the other human could blame her.
"Mmmmmmmm, you took that so well." Sif beamed, once she broke the kiss, "MJ trained you right, didn't she?"
"Yes, Mistress Sif." Betty quickly blushed, and then for good measure added, "Thank you, Mistress Sif."
Sif chuckled wickedly, and then asked, "Did she train you to eat pussy too?"
"Yes, Mistress Sif." Betty nodded with another blush.
"Show me." Sif pushed, "Ooooooooooh yessssssssss, get on your knees before your new Mistress, and show me that you know what your hot little mouth is truly for."
"Yes, Mistress Sif." Betty again blushed, and then for good measure added, "Thank you, Mistress Sif."
The poor submissive then blushed and lowered her head again, before getting on her knees in front of this much, much taller woman. Betty then bit her lip adorably for a few long seconds, before pressing her lips against the side of Sif's left knee. She lingered there for a few long seconds, before slowly kissing her way up that well-muscled thigh, slowly but surely, making her way to the older woman's pussy.
It was a technique that MJ was very, very familiar with, and she could tell that her girl wanted to keep it up. Kiss her way up the other thigh, and then back and forth, to tease her top. However, Betty made the probably wise decision of not pushing her luck.
So after another brief pause, Betty stuck out her tongue, and slid it over Sif's pussy lips. MJ could tell this was what was happening because of Sif's reactions, mainly throwing her head back, and letting out a loud happy cry, followed by grinning down at the other girl. However, from the angle she had carefully positioned herself in, MJ could just about see what was happening. And it was glorious.
Even if it made her extremely jealous. Of course, she was mostly jealous that Sif was getting her pussy licked. However, even though this was her idea, there was a small part of her that was annoyed her girlfriend was eating another pussy. And even part of her, which was jealous of Betty for being the one to taste that particular pussy.
Betty made that very easy, given that Sif wasn't the only one letting out happy sounds from this wonderful experience. No, Betty was moaning, gasping and whimpering with joy at the taste of this heavenly hole. Admittedly, those sounds were drowned out by the much taller, stronger woman, but she was 100% sure that the other women knew exactly how much she was enjoying this.
Which was a little embarrassing, but mostly it just added to her enjoyment. Oh yes, the supposed good girl rejoiced in everyone in this room knowing exactly how much of a pussy loving slut she truly was. And in this moment, Mistress Sif's pussy loving slut. After all, when MJ had initially pitched this idea, she had been very sceptical.
Hell, before they had become a couple, Betty would have been truly horrified at the idea of becoming a sex slave, and would never willingly put herself in that position. However, Betty had also never been happier than she was when she was submitting to MJ, and even before then, such a thing would've been the stuff of her most forbidden, and yet exciting, fantasies.
Although another thing holding her back would have been the fear that she simply wasn't good enough for Mistress Sif. After all, this was literally a goddess. One who had defeated The Avengers, and now had the likes of The Black Widow and even Peggy Carter as her playthings.
So it was truly amazing beyond words when her unworthy tongue was able to get such wonderful sounds out of this literal goddess. The statuesque beauty even reached down, and gently stroked her hair, while grinning down at her, which literally had Betty's submissive little heart fluttering with joy. Just like it did when she was receiving the exact same thing from her precious MJ.
Oh fuck, Betty didn't need further confirmation that she was a bottom, but it was always fun to get it. And to her delight, she continued receiving encouragement throughout the pussy licking, including having Mistress Sif provide more verbal encouragement during certain parts of it.
"Ooooooooooooh yessssssssssssss, mmmmmmmmmm, lick me just like that! Just like that, ohhhhhhhhhhhhhh, good girl." Sif moaned repeatedly for a few long seconds, before adding with a chuckle, "Mmmmmmmmm, good little cunt muncher! Ohhhhhhhhhhh yesssssssssss, is this what MJ gets, huh? Is this what you do to keep her happy? Oooooooooooooh fuck, no wonder she's so fond of you.
Oh yes, but I wonder, were you always this good? Just a fucking natural? Or were you trained? Huh? Oh fuck, did your little girlfriend train you to be this good? If so, you have my congratulations, MJ. Mmmmmmmmm, you've trained one fine pussy licker. Yeahhhhhhhhhhhh, oh yeah, one fine pussy licker, indeed."
"Thanks." MJ grumbled dryly, before quipping, "And your welcome."
This made Betty want to reassure MJ, and praise her for everything she done for her. Call her by her rightful title of Mistress MJ, and tell Mistress Sif exactly how good she trained her. Which in turn, made her almost unbearably wet. Especially combined with some truly heavenly pussy cream, which initially, made it hard for her to even think when it first touched her taste-buds.
Luckily her training kicked in, as she was very used to licking pussy, while savouring the taste of it. Hell, she even made sure to initially linger on the taller woman's clit, before ignoring it completely so she could give this literal goddess the cunt munching she so richly deserved. And so Betty could have longer enjoying this wonderful flavour.
Sif truly meant what she said about being impressed. Betty's rug munching skills were well beyond her years, suggesting that she spent a lot of time with her face buried in between MJ's legs, and maybe even in between the legs of other women, so she could have had natural skills. Which was of course, something that Sif love to think about. A bunch of teenage girls, dyking out together. Or perhaps just lying back, and allowing Betty to do all the work?
Telling themselves it didn't count, if they weren't the ones doing something. Meanwhile, Betty was only too happy to practice for the benefit of her Mistress without her knowledge. Or maybe she was the one leading the charge? Now that was a fun idea, MJ pimping out her girl's hot little mouth. As long as she could watch.
Which were the kind of wonderful thoughts which Sif allowed herself indulging during the first stages of the pussy licking, confident that Betty wouldn't give her more until she had to say. Or at least, more than she could handle. Personally, Sif didn't mind having her bitches take initiative. Even if she did occasionally punish them for it. But that was just a bit of fun, and most of them took it as encouragement, more than punishment.
Hell, some of them really, really got off on it. For better or for worse, Betty hadn't quite enjoyed the spanking as much as they had, and it was questionable whether MJ would enjoy receiving it at all. However, the goddess had other plans, which they all probably would enjoy.
It was really tempting to indulge in a few of those plans now, as MJ removed her clothes without being asked. Again, Sif might use this as an excuse to later punish this teenager, or both of them, but the truth was, she loved this little show she was getting. Oh yes, it was great to see MJ in all her glory. True, she hadn't really tried to put much effort into it, it was certainly very enjoyable to watch, and the end result was the same.