Disclaimer: I do not own Pretty Little Liars and have no association with anyone involved in the show. I do not make any money from the writing of this story.
*****
After losing her anal cherry to her girlfriend Aria had been addicted to getting her ass fucked. Spencer had used the word jokingly, but Aria immediately realised that's exactly what it was, an addiction. After one little ass fucking Aria Montgomery was a total anal junkie, who became increasingly cranky and desperate for her fix the longer she went without it.
Whenever her ass was denied cock it felt empty and unloved, although at least it was bearable when her butt hole was freshly gaped because she was still recovering from amazing orgasms, and her busted open anal ring was a wonderful reminder of what she truly was. But no matter how hard Spencer pounded her butt it always completely closed again, creating a vicious cycle. Luckily one Spencer came to her house this morning seeking to fix.
"It's called a butt-plug." Spencer explained when she pulled it out of her bag.
"I know what it is." Aria grinned, "The question is, why isn't it up my ass right now?"
Spencer smirked, "Well, if you're going to be like that, maybe you won't get your present."
Aria blushed and then rambled, "No! Sorry. I'm grateful, I really am. But you didn't stay the night, again, and I'm-"
"Desperate for a butt fuck?" Spencer smirked, "I know baby, but we don't have time. We can't be late again. So this is a compromise. Mmmmm, but I think it deserves at least a little lube first, don't you?"
"I guess." Aria agreed reluctantly, before a happy thought occurred to her, "And I know just what type to give it."
With that Aria grabbed Spencer's hand tightly, pulled it towards her and opened her mouth. She then grinned mischievously as she wrapped her lips around the butt-plug, taking most of it into her mouth in one go and then beginning to bob her head up and down on it.
At first she didn't take any more in her mouth, then for a moment she teased it before instead sliding her tongue up and down it while looking Spencer in the eye. Aria then couldn't resist grinning at the look on her girlfriend's face before she took the toy back into her mouth, and with a little effort, stuffed it all in then began noisily slurping on it while Spencer continued to watch her lustfully.
After about a minute of Aria practically trying to gag herself with that butt-plug Spencer forcefully pulled away from her and said, "That should be enough for a total butt slut like you. Mmmmm yeah, that's more than enough, so turn around and give me that pretty little ass of yours."
Grinning with excitement Aria turned around and wiggled her ass, which was barely covered by a tiny miniskirt, at her new girlfriend, "You mean like this?"
"Yeah baby, just like that." Spencer grinned, eyes locked at the perfection in front of her, "Now really show it to me and pull your little skirt up. Ohhhhh yes, that's it! Oh, no panties? God Aria, you're becoming such a slut."
"Damn right I am." Aria proudly proclaimed, grinning back at her girlfriend, "I'm a nasty little anal slut, and I want my ass filled with that plug. Come on baby, shove it up my slutty butt. My bitch hole is aching for it, oh yes, stuff that whore hole! Fill it up with that plug. Plug it, please I'm aaaaaaahhhhhh FUCK! Oh yes, mmmmmm, fuck!"
Clearly hearing exactly what she wanted to hear Spencer pressed the saliva covered butt-plug against Aria's ass hole and gave her a few more seconds to anticipate what was coming, and to beg for it, before shoving it roughly into her butt. It was actually way more often than Aria was expecting considering how gentle Spencer normally was with her back hole, at least at first, but to her shame and delight she absolutely loved the rough treatment.
Best of all Spencer didn't shove it all in from the start, allowing aria the chance to savour the feeling of her butt hole stretching, particularly during that last few seconds as the largest part of the toy stretched her most private hole before it just slipped in.
Spencer then just admired the sight of that plug filled ass for a few seconds, then smacked it and asked, "How does that feel?"
"Mmmmmm, like it belongs there." Aria beamed at Spencer as she turned to her, "Can I wear it to school?"
"That's the idea." Spencer grinned.
"Yay." Aria grinned back as she was pulled into Spencer's arms, "I love you Spencer."
"I love you too, my little anal slut." Spencer teased, before pulling Aria into a deep kiss.
*
Despite Aria's best efforts to convince Spencer to stay and fool around, even if it wasn't anal related, she was shot down and they were soon in school. Which was probably for the best, because they would have definitely been late otherwise, but like many horny 18-year-olds Aria thought that it would be worth it if she could have sex with the person she was dating.
Unlike most 18-year-olds she hadn't touched herself in the morning, mostly because she believed she could get Spencer to do it for her, which hadn't been true enough for her liking. As a result she was almost unbearably horny all day long, minutes feeling like hours and hours feeling like days so that by the time lunchtime finally came it felt like an eternity of waiting.
Sitting on a butt-plug the entire time definitely didn't help. In fact it was probably the main reason why Aria just couldn't concentrate on her work and instead thought of nothing but having passionate butt sex with her girlfriend. Something clearly Spencer knew, her girlfriend giving her these little smiles which made Aria blush, and feeling that she should be mad at her lover.
But she couldn't. She just couldn't help it, not after Spencer had made her cum so wonderfully hard last night. And it was even worse once they were actually in the cafeteria, Spencer picking the seat directly across from her so Aria couldn't escape those looks, or her blissful memories. Which became a little too obvious.