Split Personality Side Story: Lust and Rarity

by Yukito

Rating: mature
Tags: My Little Pony: Friendship is Magic, Romance, Trixie, Rarity, Sex
Length: 3706

Side story for Split Personality. Contains Rarixie.

A side story to Split Personality, taking a look at Rarity's night with Lust in-between parts I & II.

Published 2013-02-13 00:10:01 UTC
Last updated 2013-02-13 00:10:01 UTC

Split Personality Side Story: Lust and Rarity

Rarity was backed into a corner by Lust’s advances. She wanted to push the seductive mare away, and tell her to stop, but now that she was in that saddle, Rarity’s voice had completely caught in her throat, and she could only stare at the mare in admiration. That saddle suited her rather well… A little too well, almost as if it was made for her.

“You’re getting excited,” Lust said in a sultry voice, licking her lips as she neared the white Unicorn mare. “I can smell it…”

“Why are you doing this?” Rarity managed to ask through her heavy breathing. “I thought Trixie had a grudge against us.”

“Against Twilight, she did. And against Dashie, too. But against you, dear Rarity, you were merely a challenger that she bested. A heckler that she proved herself against. And… a cute mare that she would never get.” Lust leaned in and planted a kiss on Rarity’s lips.

Rarity closed her eyes and eased into the kiss, unable to resist the alluring smell of the other mare’s perfume (which Lust actually borrowed from Rarity’s collection). She felt the other mare’s tongue brushing against her lips, and managed to fight against it for the first few seconds. But when she felt a tingling and a growing hotness grow in her nether regions, she slowly opened her lips, and allowed the other mare passage inside.

Rarity had to admit that Lust was skilled with her tongue. The blue mare was practically leading her, twisting her tongue around the dressmaker’s own, and drawing it into the showmare’s mouth every now and then, so that Rarity could get a good taste.

Rarity wondered if this skills was purely Lust’s, or if it also belonged to Trixie. She felt the heat in her loins got worse, and was now starting to bother her. She moaned into Lust’s mouth as she began to fight against the other mare’s tongue with her own, much to Lust’s delight.

When Lust pulled away, Rarity let out a whimper, and almost reached out to bring her back for more. “I’m Lust, darling,” Lust said, putting her hooves on the sides of Rarity’s shoulders and pulling the dressmaker towards herself, so that her horn was just in front of her face. “I’m the physical manifestation of Trixie’s lust. And believe me, in all of her years of loneliness, she’s built up a lot of lust.” Lust stuck her tongue out, and ran it against the tip of Rarity’s horn, eliciting a yelp from the white mare.

“T-That still doesn’t mean… that you c-can just… do what you like.” Rarity tried to sound strong, but through all of Lust’s teasings, it was hard to keep up a tough demeanour. “W-What will you do if I scream?”

“… I’m ‘Lust’, not ‘Insensitivity’.” She gave the dressmaker’s horn another lick. “I won’t go any farther than this without your okay, and if you don’t like this, just push me away… However, from what I can see, you’re actually enjoying this more than you let on.”

Rarity noticed Lust’s eyes travelling down her body, and knew that she must be looking at her lower region right now. And at the noticeable, telltale puddle of wetness forming on the floor beneath the white mare.

“So, what’ll it be?” Lust asked, delivering another, longer lick to Rarity’s horn, this time tracing her tongue along the whole length of it, as opposed to just the tip. “Go further? Stop here? Or just stay as we are now?” She leaned forward, and whispered into Rarity’s ear: “It’s your choice, Rarity.”

Rarity moaned as she felt Lust’s hot breath against her ear, and tried to collect her thoughts as she recovered from the blue mare’s licking. However, the longer she went without Lust’s tongue running against her horn, the more her mind started to go crazy.

Rarity’s marehood was dripping with her natural lubrication right now, and the scent coming from Lust, which she was sure was more than just perfume now, was starting to drive her wild! Lust’s former attacks on her lips and her horn were still unfinished, and her body was demanding that the job be completed.

‘I… I should push her away. I can always finish the job later, by myself…’ Rarity began to do just that, placing a hoof against Lust’s chest. But then, another thought crossed her mind: if Lust’s tongue against just her horn could do this to her, what would it feel like against other parts of her body?

Rarity imagined Lust kissing and licking all over Rarity’s body. She would start from her neck, and then work her way down the dressmakers body, licking circles along her chest, running her tongue down her stomach, and then giving teasing flicks against the white mare’s breasts, getting faster and faster as she made her way down to…

“Ooh!” Rarity moaned as she felt a hoof press against her special area. She remembered what Lust had said: that she wouldn’t go any further without consent. What a lie. Rarity prepared herself to chastise the lying mare, but stopped herself when she still felt two hooves on her shoulders. Then… who? … ‘Oh.’

Rarity’s face brightened as she looked down, and found her own hoof in contact with her wet marehood, slowly grinding up and down against. “Having fun?” Lust teased, grinning at the mare beneath her. “If you just want to please yourself while I watch, that’s fine too. Just don’t complain if I start to join in.”

Rarity’s breathing increased, and she tried to stop the hoof that was currently rubbing against her soaking wet nether regions. ‘I-I’m being watched… This isn’t right. I have to stop. A lady shouldn’t do this in front of others!’ A shockwave of pleasure passed through Rarity’s body. ‘B-But I can’t stop! Not yet! I’m so close, I just… need something more…’

Rarity panted as she sped up efforts, and tried to relay a message to Lust. However, it only came out as unintelligible squeaks the first two times, but the third time, she was able to get message across very clearly. “L-Lust… S-Suck on my horn.”

Lust smirked. “You’re sure?” she asked, leaning forward and hovering her mouth just above the tip of Rarity’s horn.

“H-Hurry! Please, I’m almost there! I j-just need a little more…”

“As you wish.” Lust bobbed her head down, taking the full length of Rarity’s horn into her mouth in one go. This elicited a loud shriek from the white mare as she felt her entire body tingling in pleasure. Lust ran circles around Rarity’s horn with her tongue, drawing out further moans from the dressmaker, and slowly started to move her head up and down the protrusion.

“Oh, T-Trixie!” Rarity cried out, biting her lower lip as she felt herself reach her limit, and climaxed over her hoof, moaning and writhing as she felt her horn filling up with magical energy.

Lust felt the horn in her mouth heating up, and quickly pulled her head back. She ran her hoof along the shaft of the horn, rubbing it as fast as she could as the mare beneath her moaned even louder. Finally, Lust’s efforts were reward, as Rarity’s magic reached the tip of her horn, and burst out in sparks as she reached a second climax so soon after her first.

Lust allowed Rarity a minute to calm down, stroking her hoof along the dressmaker’s smooth purple mane and leaning down to kiss her gently on the forehead. “Did you enjoy that?”

Rarity could only nod in response, and then turned her head to look into Lust’s half-lidded eyes. “… I-I’m sorry about that, darling.” Lust gave her a confused look. “For calling you Trixie… I… just forgot that you are ‘Lust’.”

Lust smiled, and planted another kiss on Rarity’s forehead. “Well, I am technically Trixie, in a sense. Anyway, as long as you felt good, that’s all that matters. Even if you imagine me as somepony else entirely… I just want us to both feel good together.”

“… You’re… only after a good time?” Rarity asked, her breathing slowing down, but her mind growing more uneasy now.

“As I said, I’m Trixie’s lust. All I want, is to relieve myself of this… this itch that I have. And, although Trixie’s sexual tendencies, including her rule of ‘no sex without consent’, stuck with me, her love didn’t. So, if you were hoping that we could be partners after this, I’m afraid you’re mistaken.”

“…”

“But then,” Lust continued, putting a hoof under Rarity’s chin and lifting her head up, “As I said, Trixie’s love isn’t a part of me. All I can say for now, is that Trixie is single, and you’re not an unattractive mare by any means. If it’s love that you’re after, you’ll have to wait until Trixie is back. But until then… how about you get a free sample of what she has to offer you?”

Lust moved back away from Rarity, and lay herself down onto her back, spreading her hindquarters invitingly. Her dripping marehood was on full display to the dressmaker, and the scent of her arousal began to fill the air, mingling with Rarity’s own. “Well, since I got you off, it’s only fair that you return the favour, right?”

Rarity looked at Lust’s lower lips with great interest, her breathing increasing again as she took in more of the intoxicating scent, and her tongue running along her lips as she wondered what the showmare tasted like. Her mind gave in to her desires, and crawled forward to move her face closer.

As her muzzle began to near to the showmare’s waiting lips, she decided to stop, and have a little fun, before giving Lust was she wanted. She moved her head further up Lust’s body, so that the mare’s two hard nipples were in front of her face. Without warning, Rarity leaned down, and took one of them into her mouth, running her tongue over it as she pressed her hoof against the other one.

Lust let out a series of moans that told Rarity to keep doing what she was doing, and ran a hoof through Rarity’s mane as the white mare continued to suckle on one nipple, flicking her tongue against it and giving the occasional nibble now and then, and tease the other one with small, circular motions of her hoof.

“Rarity, you’re pretty good at this. You do this often?” Lust asked in-between moans. Rarity stopped to answer her, much to her annoyance.

“I’ve… dabbled, a little bit. In my youth, I liked to experiment, since mother and father never gave me ‘the talk’.”

“I see… Too bad.” Lust shot Rarity a mischievous smirk. “I like giving ponies their first times.”

“If it helps, I’ve never had anypony do that to my horn before.”

Lust though about it, and then nodded. “Guess it’s better than nothing. Speaking of nothing… I can’t help but notice that you’ve stopped.”

“Oh, is that so?” Rarity asked in a fake innocent voice. “I hadn’t noticed. Terribly sorry, darling. Let me make it up to you.” Rarity went back down onto the showmare’s breast, doubling her efforts and sucking twice as hard now, whilst using her magic on the other breast to take over the job of her hoof, which was soon to be preoccupied with something else.

“Ooh, that’s good, Rarity…”

Rarity smiled inwardly, and couldn’t deny a certain pride in her ability to elicit such cries and moans of pleasure from another pony. ‘I think I’ll stop teasing her now, and give her what she really wants.’

Rarity slowly moved her forehoof down Lust’s body, before gently pressing it against the showmare’s leg. Lust didn’t take notice right away, too busy praising the dressmaker for efforts and rewarding her by slowly rubbing her hoof against the base of Rarity’s horn.

It wasn’t until Rarity’s hoof slowly glided up Lust’s leg that the blue mare took notice, and her hoof on Rarity’s horn suddenly stopped as she felt the dressmaker’s own hoof reach her thighs. She waited with anticipation as the hoof moved further up, bit-by-bit, pressing slightly harder against her coat the closer it got to her waiting marehood.

‘She’s so wet… She must want this badly. Who am I to deprive her of that?’

Lust yelped as she felt Rarity’s hoof brush against her lower lips, causing Rarity to stop immediately, and look up at her with concern. “Darling? Are you okay? I didn’t hurt you, did I?”

Lust shook her head. “I-I’m fine. I don’t know what that was… I-I guess, being Trixie’s lust, my body is more sensitive than it was when Trixie was whole.”

“… Is that so?” Rarity asked with a mischievous grin on her face. “So in other words, if I do this…” Rarity’s pressed her hoof firmly against Lust’s clitoris, eliciting a squeal from the other mare. “Or this…” She ran hoof against the inner folds of Lust’s marehood, causing the showmare to bite down onto her own forehoof to suppress her cries of pleasure.

“S-So gooood! Rarity, don’t stop! Please!”

Rarity took some pleasure in seeing the mare that resembled Trixie so much begging her to continue, and let out a soft chuckle. “That depends… If I do this, could you do me one, little favour?”

“Anything! Just… finish me, already! I’m already so close!”

Rarity grinned, and moved her head down to meet the showmare’s aching nether region. “Very well then, if you want it so much…” Rarity moved her muzzle forward, burying it within the showmare’s soaking wet lower lips. Lust screamed out as she made contact, and quickly placed her forehooves behind Rarity’s head, to ensure that the white mare didn’t pull back until she was done.

“Rarity, don’t stop! It’s so good, I… I’m losing my mind!”

Rarity felt so great right now. Great, and powerful, too. She enjoyed the taste of Lust’s juices pouring out onto her muzzle, and stuck out her tongue to get more. Her tongue penetrated the showmare, and began circling around, so that Rarity could taste absolutely every inch inside of her.

“RIGHT THERE, DON’T STOP! OH, BUCK! I-I’M-MMMM!” Lust tried to stop herself from screaming by biting her lower lip, but when Rarity moved her hoof up, and began to fondle the showmare’s clit, it was too much for her to take. “A-AAAAAAHHHHHH!”

Rarity felt Lust’s hot orgasm spray all over her face, and pulled her tongue back, so that she could lap up all of the showmare’s juices as they squirted out of her. She loved the taste, and didn’t want to miss even a single drop.

When Lust was finally finished with her climax, she lay her head down, and stared up at the ceiling, allowing herself some time to recover. Or, at least, she tried to, but Rarity wasn’t quite finished yet.

“I’m glad you seemed to enjoy that so much, darling,” the dressmaker said, placing herself on top of Lust and bringing their lips together into a deep, passionate kiss. She pulled back so that she could continue. “But I believe you owe me a favour?”

“… Right now?” Lust asked, almost in a whine. “Can’t I rest up first?”

“It has to be right now,” Rarity said. “Otherwise, I might not be in the mood later.” Rarity’s horn lit up, and Lust heard the sound of a drawer opening behind her. “Close your eyes, dear.”

Lust was confused, but obeyed anyway. “Can you stand up please?” It was difficult, but, with much effort, Lust managed to bring herself to her hooves. She felt something touching her lower region, which was still sensitive from her recent orgasm. She tried to tell Rarity to stop whatever it was that she was doing, but it only came out as moans and shrieks as she felt something long and hard pressing against her. “Let me know if this hurts, okay?”

Lust nodded, and then almost bolted up into the air as she felt the unknown thing pressing harder against her lips. It didn’t take her long to figure out what it was, and as the object made its way inside of her body, she felt her wetness from earlier returning, along with her need for release. “R-Rarity, I-”

“It’s almost on, darling.”

‘‘On’?’ Lust let out one final yelp, and then felt something pressing against her loins. Whatever was inside of her, it seemed to be all the way in, now. She heard clicks, and then, a few moments later, Rarity’s voice.

“You can open your eyes now.” Lust did just that, and she gasped at what she saw. In front of her, Rarity’s sopping marehood was on full display, as Rarity lay down on the floor facing away from Lust, her behind sticking up, and her tail flagged to allow full access to her lower regions. “I think you know what I want by now.”

Lust looked down at her own body, and realised what Rarity had meant when she said that it was almost on. She was referring to the strap-on that she was currently wearing, with a rather long, blue plastic phallus now running along her body. She looked back at Rarity, who was waiting impatiently for the showmare to start, wriggling her hips as she looked back at Lust with an expectant look.

“Well?” Rarity asked. Lust grinned, and made her way closer to the white mare. “That’s it. Gently now, darling.”

Lust nodded her head, and used her magic to align the strap-on nicely with Rarity’s waiting lips. After receiving a confirming nod from Rarity, Lust pushed forward slowly, stopping when she heard a yelp coming from the other mare’s mouth.

“I’m fine, darling. Just keep going…” Lust continued her advance, slowly burying more and more of the phallic device into Rarity’s depths. Rarity cried out in a mix of pain and pleasure as she felt the intruding object inside of her, and tears began to form in her eyes as she bit her lower lip to keep from screaming too much. Nevertheless, whenever Lust stopped, she insisted that she was fine, and told her to continue.

“It’s almost completely in, Rarity,” Lust said, leaning over Rarity and holding her flanks firmly, to get a good grip on the mare beneath her, as she pushed the last of the strap-on inside. “It’s in.”

Rarity was thankful that Lust waited a bit, to allow her some time to adjust, before starting the main event. “… O-Okay, you can move now, darling.”

“Alright, but let me know immediately if it hurts.” Rarity turned her head to look at Lust with wide, sparkling eyes. “W-What? Back when Trixie was whole, she was quite the gentlemare in bed. I’m just amplifying that right now.”

Rarity smiled, and then braced herself as she waited for Lust to start. Which wasn’t too long afterwards. Lust moved her hips back slowly, drawing the long phallus almost completely out of the white mare’s tight folds, before pushing back in, picking up her pace a little bit. Rarity yelped, but this time, it was out of barely any pain at all, and almost completely out of pleasure.

“F-Faster, please,” she said, and Lust obeyed. The next thrust was much faster than the last, and by this point, there was no pain behind it at all. “Faster… harder…”

As Lust continued to pull out and thrust back in, Rarity’s moans gradually increased in volume, and with each thrust, Lust’s speed would increase. And every time she pulled out, and then smacked her hips against Rarity’s flanks as she pushed back in, she could feel the long object inside of herself moving about, slipping out and pushing back in with each thrust.

“Oh, Trixie darling, keep going! I’m almost there!”

“M-Me too! This feels incredible! I need to write Trixie a note, to seriously consider you as a bride in the future!” As Lust’s thrusting grew more and more intense, both Unicorns’ horns began to light up. Lust leaned forward to bring her head closer to Rarity’s, and used one of her forehooves to pull the dressmaker’s face towards her, drawing her into a deep kiss as the two drew near.

For Rarity, this was all that she needed, and with one final thrust, she screamed into Lust’s mouth as their tongues danced around each other, and she felt herself reach her third climax that night. As she came, her horn discharged her magic violently, some of it making its way to Lust’s horn, which, in turn, set off the showmare’s own climax.

Lust continued to thrust as she rode out her orgasm, causing Rarity’s mind to go blank from the intense pleasure that it brought. Finally, Lust’s high began to die down, and she slowly pulled herself out of Rarity’s hole.

Rarity collapsed onto the floor, breathing heavily, and her fur a sticky mix of sweat and marecum. Lust crawled beside Rarity with whatever strength she had left, and the two mares held each other as they basked in the warm afterglow together.

“Darling… that was… incredible…”

“It sure… was…” Lust brought her lips to Rarity’s sharing one more passionate kiss with her, but this, it was more of a slow, romantic kiss. Whilst this held little value to Lust, and she would have preferred a more aggressive one, like earlier, she still enjoyed it for what it was. “So… ready to go again?”

Rarity gave Lust a blank look. “You… can’t be serious…” Lust’s grin stayed on her face, and she slowly began to stroke her hoof along Rarity’s body. “… You are serious, aren’t you?”

“Like I said, Trixie’s had a lot of lust built up over the past year. It’s gotta go somewhere.”

Rarity gasped as she felt one of Lust’s hooves touch her horn, and couldn’t do anything more than lay back and let out small gasps and moans as she felt the hoof moving up and down her shaft. ‘O-Oh no… What have I gotten myself into?

Author's Note

A/N: Thanks to TimeTravInDEMON for pre-reading and editing this chapter.