Rarity made her way back to the Sparkle household with a spring in her step. She had spent the day scouting out Canterlot, looking into certain targets and opportunities for her Master and boyfriend. Erotic perverted fantasies danced through her mind as she walked through the city. Sometimes those fantasies identified lovely ladies she would recruit later, sometimes she would spy buildings that could be converted into strip clubs, or other kinds of erotic industries. Speaking of which she wondered how Sapphire was handling the boutique back in Ponyville, all she knew from her phone’s bank account was that she’d had doubled the profits. She was almost jealous.

But now the diamond in Spike’s horde was returning to his side, eager to see how he’d fucked and broken Twilight Velvet on his dick. She had taken her time in Canterlot so when she returned to the Sparkle household darkness had fallen and Luna’s moon rose over the sky.

When her knock on the door went unanswered Rarity used a simple spell to unlock the door and enter. As she walked through the house she could hear the muffled moans of a few very familiar voices in the study.

“Ngaaah! Fuck!” Twilight moaned, her head rolling back on her neck. She and her mother had their two bountiful tits pressed against one another, their Master's cock sandwiched between them.

“Quiet there Twilight you don’t want to wake my husband now,” Velvet chided, a teasing smile on her face, eyes sparkling with delight.

“Hey, this was your idea. Giving our Master a double titfuck whilst Dad was in the other room.”

“Well after I saw your new pair of tits I just had to fuck you. Especially now that I got to be open with Master Spikey here. I have to admit Twilight I’m a bit surprised it’s you and not Gleaming here. It was always Gleaming’s dream to be Spike’s sex slave and also to make all the guards sluts. But you Twilight I thought you just wanted to be a slut like Cadence.”

The mention of Cadence triggered a bit of curiosity in Rarity. She wondered how the many changes to Velvet’s past might have been affected. The Root of Honesty had tended to keep the butterfly effect to a minimum, though there might still be a few changes.

“And I still do, but Cadence is a slutty sex slave to Master Spike here.” Twilight cocked her head towards Spike. “So if I want to be like Cadence I need to be Spike’s personal fuckslave just like her.”

“And what of me then Twilight?” Rarity asked, announcing her presence to the two titfucking mares. As she surprised the two other mares Rarity took the time to check out the new study that Velvet wrote her smutty porn. Art of the characters she had written, or different playpony magazines were on the walls.

“You have good taste in art Velvet. Did you happen to ever pose in these magazines?”

“Oh no I could have the nerve to-“

“You did didn’t you?” Spike said, taking the hint with a smile.

Several of the posters changed to feature Twilight Velvet on them, in various poses and states of undress. Rarity’s favourite was the one where she stood naked with her back to the camera. Her ass on delicious display for all to see.

“Well, I had to advertise my stories somehow Master.” Velvet’s eyes switched to Rarity. “So she’s your favourite Master? I hope you can serve him well.”

“Oh, I think you’ll find I can do that and much, much more,” Rarity promised with a smokey gaze from the one eye that wasn’t hidden behind her beautiful mane. “But your mistress has some questions for you.”

“I’d be happy to help, I’m quite the multitasker,” she said, causing Rarity to smile. But as she was talking Rarity spied another intriguing poster on her walls, this time one of Cadence, inspiring her new line of questioning.

“Since Cadence is an alicorn she’s a lot older than she looks. Did you know her when you were eighteen?”

Rarity’s eyes flickered up to Spike’s with a silent request, and he immediately understood what she wanted him to do, even if he didn’t know where she was going with this. “Is Rarity going to be right about all of this?”

Blowing her Master a kiss in appreciation Rarity turned back to Velvet. “Yes, I did. I met her when I was a senior in my last year, we hit it off and stayed in contact.

“I bet she was a huge fan of your porn.”

A grin spread across Velvet’s face. “At the time I wasn’t a published writer, only writing online. I was anonymous then, too scared to come out as the perverted writer that I truly am. Until I met her.”

“How did you meet her?”

“She had begun a fan club of my story. I’d never seen such a shameless woman but she had such confidence that no one dared to question and a charisma that drew so many to join her club. She was so passionate.”

Rarity smiled at how history changed, it made sense to her, Cadence already had such an influence on the Sparkle family. She was Twilight’s idol and Gleaming’s inspiration (not to mention wife) so why shouldn’t that also be true for the matriarch of their family?

“She would discuss theories with us, have us cosplay, read us the passages and encourage us to masturbate to it. Her voice was so hot.”

“Did she ever have you act out the scenes?”

“Yes she did, and those were incredible. We bonded over the fact that we were both insatiable, and we both knew that somewhere there was someone out there who could finally satisfy us. And that person was you, Master Spike.” She leaned her cheek against his cock lovingly, across from her Twilight smiled with the same level of enthusiasm that she has when discussing her favourite book series.

“Mom, why didn’t you tell me any of this?” Twilight asked, her eyes lighting up as if filled with stars as they often did when she was enthralled.

“It just never came up dear. And I didn’t want to be too obvious that I was trying to turn you into an amoral whore dear.” She answered the question in a blasé manner, with no second thought about the confession, Twilight didn't seem to mind in any case. Instead only nodding in understanding.

"So dear what happened when Cadence found out?" Rarity asked, parting the fabric of her dress and snapping a cushioned chair into existence to lay back on. Soon her legs were spread and her ivory fingers began to explore her glistening clit, sapphire eyes drinking in the display of the mother and daughter pair of tits smothering her lover and Master's cock as her mind dreamed up Velvet's explanation.

"She was all too excited. She convinced me to publish them as full-blown books and gave me so many ideas. Both in and out of the bedroom, she was the one who suggested making the stud of the son a sexy dragon and having Scarlet Robin start training her daughters to serve her son. You know looking back I wonder if she wasn't secretly planting a seed in my mind for Twilight and Gleaming."

"Hmm well as a Princess trained by Celestia herself Cadence does know how to be particularly cunning when she needs to be. Especially recently when our Master's involved."

"I can attest to that," Spike added before he pushed the two Sparkles together to remind them of the titfuck they'd been distracted from.

"I imagine so, and when I thought about who would train Twilight and Gleaming well there was only one real choice."

"We'll have to have a family reunion at some point. You can meet Spike's new daughters," Twilight suggested with a smile as Velvet's mouth rounded into a perfect 'O'.

"You have daughters?!" The three guests quickly explained everything about Rose and Sapphire. Velvet only grew more impressed. "You sexy stud of a pervert Master! You simply must introduce us! Just thinking about it makes me wanna...wanna-AHHHHHH!"

And with that, the MILF who could go hours fucking without ever truly cumming was sent into a blissful orgasm by just a cock between her tits and the fantasy of her perverted dragon son. Rarity though wasn't done with that. She got up from her seat and strode towards the exhausted Velvet as Twilight shuffled to take her mother's place in the titfuck. Rarity took Velvet by the back of the skull and lifted her to face the unicorn.

"Now dear I have a task for you and your Master. I want you to write a new book, but this time it won't use expies it will be about Spike himself. It will take place in the future, where he rules the world and all women are his sex slaves and I am the diamond in his horde. It will be a utopia where all are happy, a promise of the future to come. You will write that won't you?"

"And it will be a masterpiece, loved by all won't it?" Spike added.

Too exhausted to speak, Velvet merely nodded her head.

Author's Note

So it's a good thing I'm not a betting man because you lot surprised me once again. I expected Celestia to be the one who wins outright but right now it's neck and neck with Fleur. This actually might work out really well for me story-wise, but bear in mind the next vote will be shifted back to Ponyville, and then it'll be a background vote for those who didn't get much support in previous votes (but will include options from both Ponyville and Canterlot.)

Thanks to Jonathan Stag for the idea for this chapter of integrating Cadence more in Velvet's backstory.

Straw Poll for next chapter: https://strawpoll.com/eNg69EbmwnA

Crowdfunding for Commissions: https://ko-fi.com/darkstar239

Suggestions, feedback and comments are welcome and help motivate me to continue.

EDIT: The poll will finish in three days. I've decided to add that limit so things feel more fair