Author's note: This story takes place during Season 5 of Pretty Little Liars.
*
Aria Montgomery looked herself up and down in the mirror. She had always cared about her appearance, but tonight was special and she wanted to look her best for her girlfriend Spencer Hastings.
As it had only been about a month since they finally confessed how they felt about each other thinking of Spencer as her girlfriend still made Aria smiled dreamily, and in this case wonder if she should really risk her new and exciting relationship with her very best friend for some perverted kink. But like every other time she had debated it she ultimately decided she had to go through with it, as the curiosity was killing her.
Turning around Aria stuck out her ass and then looked back over her shoulder so she could admire her own backside. She didn't have the biggest tits, but her ass was round and juicy without being too fat. Spencer, and even her other friends, had called it perfect, and weirdly she had always found that flattering.
But it was more important than ever that Spencer found her butt perfect, or at least desirable, because tonight Aria was giving up her final cherry to her girlfriend, and if she was honest the one she had been most curious about losing, even if she hadn't been able to admit that up until recently.
Suddenly there was a knock on her door which startled Aria, that door immediately opening to reveal her girlfriend Spencer, who smiled softly and greeted her, "Hey."
"Hey." Aria replied.
Chuckling softly Spencer slipped into the room, close the door behind her and asked, "So, whatcha doin'?"
"Hey, don't judge me!" Aria huffed, turning her body away from the mirror and towards Spencer, "You always wait a few seconds after the courtesy knock. Always. Otherwise, something like this happens!"
"It's not that bad." Spencer soothed, "We're all subconscious about our bodies, and bend them in awkward positions to study them. And, and if I had your ass I wouldn't be able to stop staring at it. I mean, I can't stop staring at it now. I mean, I, erm, you're really pretty."
Seeing an opening Aria smirked, sauntered up to her girlfriend with more confidence than she actually felt and purred, "You like my ass?"
Spencer nodded, and then in an attempt to dig herself out of the hole she felt she dug for herself she started kissing Aria's ass, "It's amazing. And so you. God Aria, you're the best thing that's ever happened to me, and your ass is out of this world."
Aria smiled, grabbed Spencer's hands and slowly guided them to her butt, and then asked, "How about you fuck it?"
Spencer blinked a few times, and then mumbled, "What?"
"My ass. I want you to fuck it." Aria confessed.
For a few seconds Spencer just stared at her girlfriend, and then asked, "With my fingers or-"
"The strap-on." Aria admitted, "I want you to really pop my cherry."
"Wow." Spencer mumbled in disbelief.
"You don't have too." Aria quickly added, "It's just... you're always staring at it, and that kind of made me a little... curious, so-
"I'd love too!" Spencer blurted out.
"Really?" Aria asked nervously, "You want too?"
"Oh God yes! I've never wanted anything more." Spencer mumbled huskily, kissing Aria before she could put her foot in her mouth and screw herself out of this amazing opportunity.
Aria smiled into the kiss before becoming lost in it. That went better than she could have hoped for, even the best scenarios in her head involving her having to talk Spencer into doing it. Instead Spencer was kissing her more passionately, or at least more intensely, than she'd ever done before.
She also only briefly moved her hand up was to cup Aria's cheek when she eventually moved in for the kiss before she move that hand down to greedily squeeze Aria's rear cheeks with both hands, instead of just the one that had instantly remained there.
This was one of the reasons that Aria thought Spencer might be into the idea of fucking her ass. On the few times they'd kissed in public it had been very PG, Spencer keeping her hands on Aria's waist during the usually brief lip lock.
But Aria got the feeling that even then Spencer wanted to move her hand lower, and whenever they were alone together and making out or even having sex Spencer couldn't seem to keep her hands away from her butt.
And then there was the aforementioned staring, which had started long before they got together and had been one of the reasons they'd confessed their feelings, but Spencer had become shameless, staring at it every chance she got. So Aria had taken her chances, and she was so, so glad it was paying off.
Spencer hadn't been shamelessly groping and staring at Aria's ass. In fact, her life had become filled with never-ending shame, but she just couldn't help it. Aria just had the best butt ever, and Spencer was a horny teenager, and it wasn't like she was the only one who stared. Everyone did.
No, that wasn't an exaggeration. Literally everyone, over the age of like 13 or whatever, at least lingered their gaze longingly at Aria's ass, which was something Spencer knew for a fact because she'd become hyper aware of the effect that Aria had on other people ever since she realised she was in love with her best friend.