"So, how soon is the opening, Rarity?" Spike asked as they drove to Luna’s Whorepalace grand opening. A limo provided by Celestia, with a particularly busty limo driver whom he'd been assured had been personally trained to ready to take his cock at his word. But Spike only had eyes for Rarity, who sat on his cock, her beautiful yet slutty dress having no panties to get in the way as he fucked her.

"It will start when you want it to start, Master! Everypony there is waiting for you, for their Master! Fuck!" Rarity squealed, as she bounced her delicious, perfect marshmallow ass on Spike's cock. Spike gripped her by the Cutie Marks, squeezing handfuls of her ass as they drove.

"Perhaps I'll keep them waiting a bit, after all, I don't think any of them are better fucks than you." Spike said, sending shivers down Rarity's spine.

"Oh, you charming, well-hung stud." Rarity cried as she thrust her body down particularly deeply onto his cock. Fucking herself on his mast as she didn't even have to do anything. This was what always drove her into a frenzy, Spike on his way to dominating other mares, but knowing that no matter who he fucked, whether it be their friends, supermodels or even the princesses, Rarity would always be his favourite, no matter what. "Let me give you a reward."

She wrapped her legs around his waist, and with a grace that overshadowed even the greatest gymnast, she lifted herself on and off of Spike's cock. Coming close to orgasm, Spike lunged forward, pinning her to the floor of the limo and thrust into her like an animal. Rarity simply screamed and writhed in pleasure. "Yes, fuck me you sexy beast! Claim your slave, I'm yours to use as you see fit!"

Spike needed no further invitation and he pounded into her with wild abandon. Stirred from Rarity's earlier lap dance, he found himself unleashing his thick creamy load into her divine womb, groaning as he heard Rarity similarly cry out in pleasure as she came in conjunction with him. She wobbled over to the seat beside him, a snap of her fingers and both of their clothes fixed themselves up in an instant.

Soon enough, they were slowing down, and Spike spied through the window the Whorepalace opening. It truly lived up to the palace part of its name, it was as big as the Castle of Friendship and lit up as brightly as a casino. Even though the grand opening was an exclusive event, Spike had no doubt everypony who was awake at this moment saw it.

"Luna sure does want to make a scene." Spike muttered as they came to a stop, the footsteps of their driver could be heard making her way to the door to open.

"The poor dear has been unappreciated for so long, it's only natural." Rarity said as she applied just a touch of lipstick in a hand mirror. "But now, as the Slutqueen of Whores she will be the true star of the nightlife in Canterlot."

"Slutqueen?"

"An idea I came up with. After all, my Master, our alicorn slaves are such dominant enforcers of your will. It seemed appropriate." She snapped her hand mirror shut. "Then again, I suppose they remain your sex slaves regardless. So, perhaps Slutprincess makes sense, it is your choice, as are all things, Master." She gestured a hand to the door. "Shall we?"

They stepped out and made their way to the Whorepalace. A crowd of onlookers had formed, curious as to what this high-class establishment was and why it was such a VIP event. They drew quite the attention as every mare, straight or otherwise, in the crowd was drawn to Spike's inflated allure, or by Rarity's bewitching sex appeal, but neither paid much mind as they entered the club.

As soon as they entered, Luna came rushing up to them, beaming as she approached. She was wearing in platform heels, at least several inches tall, and coloured like the moon. Her body was covered in a one-piece latex dress, barely stretching across tits, with a lovely boob window for them to see.

[Derpibooru:3349972]

"Ah, welcome, Spike, Master of all, and Rarity, the fair diamond of his horde. We have been so eagerly awaiting your arrival." Slutprincess Luna purred, clasping Spike's hand in both of hers. "We've prepared so many surprises for you tonight, we hope that this will please you."

"Oh, I have no doubt about it, Luna," Spike said with a wolfish grin. "What's first?"

"Right this way," Luna said, leading him towards the finest stage in the palace, Rarity slunk around his arm as they walked. As they approached, a beautiful, alluring song could be heard, one that sounded somewhat familiar.

"He comes, our Master comes, and it will our joy when he comes. Let us unite, sisters and whores, unite to make him happy, to make him horny. Let us serve our Master together, girls. And offer our bodies to him."

"That sounds like Siren magic," Spike said, pointing to the origin of the sound. To his surprise, Luna didn't seem in the slight bit concerned, instead simply smiling.

"A gift from your daughter, she has been studying Siren music. You need not worry, my Master, we were sure to shield you from the effects, but it will be sure to set the mood for tonight." Princess Luna assured him.

"Another surprise by Sapphire? Can't wait." Spike said, rubbing his hands as he entered the room. As he entered the room, he found that it was like stepping into the Grand Galloping Gala at the palace. The stage was made of rich, vibrant spruce draped in red velvet, flanked with two grand fountains carved with beautiful statues of Spike and his many personal whores. Along the walls and around the pillars were rows of beautiful vines and flowers, lavender in particular, and banners welcoming their Master's arrival and announcing the grand opening of the club.

But Spike's attention was drawn to the sound of the music, and most especially, the band performing before him. He recognised the pianist from Mrs Cake's strip club in Ponyville, the big-titted stripper Sweet Melody. Spike had no idea that she was such a talented pianist, maybe he would ask her about it one day when fucking her. But his attention was drawn specifically to the famous cello player beside her.

Spike was impressed, he'd known Octavia from around Ponyville but had always thought he'd never see her in a strip club like this, nor did he think her tits were this large, but Spike was far from disappointed. Spike's hands were twitching as he lusted over the busty earth pony, enjoying the way her sparkling purple dress clung to her body, squeezing her bust as it was now too small for her new body.

At first, she seemed bored and impatient, but that changed when she spotted her Master Spike arriving. She played a lower, more seductive note on her cello, as she batted her eyelashes for Spike, giving him a come hither look.

"Do you enjoy my performance, Master Spike?" She asked, pressing herself and her tits against the cello, giving Spike a good show.

"It's very good, but I'm more interested in the performer," Spike said separating himself from Rarity's grasp and beginning to circle her, tracing his hand around his body, feeling her new body, taking the occasional opportunity to grope any particularly sexy piece of flesh. "To whom do I owe this new body?"

"Ah, Lady Sapphire, Master. She enchanted the Siren's music to unlock my desires that I had buried inside, and to grant me the body from which to serve you." Octavia gasped, face turning red as she was driven hornier. Out of the corner of his eye, Spike spotted Sweet Melody looking pleased at her mentor's new attitude, Rarity too.

"Is Sapphire here? I must reward her Master. Please, excuse me." Rarity leaning into to Spike's ear and whispered deeply. "And have fun."

"I always do." Spike could feel his mast hardening. "Come with me."

Spike took Octavia's hand and made his way to the VIP suite of the Whorepalace, a bedroom designed for him and his tastes. A rich scarlet carpet, paintings of himself dominating other mares, a platter of his favourite drinks kept ice cold, a pole for private shows, and a magnificent bed fit for an emperor, big enough to hold several mares for a personal orgy.

"A room fit for a king," Octavia mussed, stepping forward and turning on her heel and pressing her body against Spike. "Or a Master."

Spike grabbed Octavia, and their lips met. Spike's hands ran through her mane as hers trailed down his spine. Her lips tasted tingly, she was slow and passionate, making every effort to keep the kissing going as long as possible. But eventually, she was forced to pull back, a purple mark left on Spike's face as it was time to get to the main event.

"I want you to know something, Master," Octavia said as she shimmed down her dress, holding it around her shoulders as she gazed at her master, eyes shimmering with lust. "I only let Vinyl do vanilla oral sex with me, but with you, Master, I'll let you do anything you want."

She dropped her dress, letting it fall to the floor, leaving her wearing nothing but a pair of stockings, purple high heels and a smile on her face. She gave him a smouldering gaze, the thick smell of erotic perfume filled the air as Spike dropped his own clothes to the ground.

[Derpibooru: 2141972]

Spike rushed forward, his left arm reaching around her back, his right taking handfuls of tit flesh, thumb grazing along her nipple. As Octavia cried out in ecstasy, Spike kissed her neck, tasting the smooth fur within his mouth. "Maybe I'll take Vinyl next, fuck you two together."

Octavia cried out in delight. "Please do Master, a threesome between us would be quite divine." She spread her legs open. "But I would recommend we wait till later on that."

Spike was smiling, approaching deliberately slowly, he made a great show of stoking it, watching as Octavia became more and more flattered by its increasing size. Finally, with her face red with lust and her teeth biting into her lips she finally whispered. "Please, Master, fuck me."

"Tits." Spike said, and Octavia came rushing over, her hands lifting her tits up for him, smiling widely. Then she knelt below his cock and looked up at him with reverence.

"I understand, Master."

Despite being a lesbian, it seemed Sapphire had programmed some tips into her when it came to pleasing her Master, as before she proceeded with the tit job, she made sure to get his cock nice and wet. Her tongue rolled over the scaly behemoth with long strokes, her body shivering every time her tongue returned to her mouth as she savoured the taste.

But she hadn't forgotten her orders, so, as soon as she had sufficiently wet his cock she spit it out, and wrapped her colossal tits around his mast. They were huge and soft, an ocean of grey tit flesh that wrapped around his cock, enough that even Spike's immense cock felt nice and smothered.

"Good job, slut. I hope you're enjoying your new tits." Spike said, placing his hands on Octavia's shoulders and thrusting between her tits. They were so soft, jiggling like jelly between his thrusts, but Octavia made sure to keep them pressed against his cock, moaning all the way.

"Please, Master! Fuck my titanic tits, it feels so goood!" She cried, groaning with every thrust, eyes glazing over in lust and frantic hands squeezing as much of her tits around his cock. Even Vinyl eating out her pussy never felt so good, her new body was so sensitive, built for fucking.

"Oh, I will but I'm going to cum soon," Spike growled, sending a thrill through Octavia's body. "Then I'll fuck your cum stained body."

"Yes, please. Turn this elegant lady into your cumslut!" Octavia begged, and Spike was all too eager to help with that. He released his load, letting the spunk cover Octavia's face and mane. Octavia was eager to lick up any trace of the ambrosia she could before it set into her fur. Not that she minded her fur gaining a new gleam from Spike's cum setting into her fur.

"The rumours are true, your cum is truly superior to all other products." Octavia purred as her fur began to gleam. "Truly worth its weight in gold."

"Maybe you'll like to feel it inside you, then." Spike said, with a wolfish grin. Without hesitation, Octavia scrambled onto the bed and wiggled her ass for her Master.

"I suspect you might be right," she said, with all the enthusiasm of a love-struck schoolgirl. Her pussy was already leaking femcum, and her cheeks shook as an invitation. Spike was eager to accept, his cock still hard thanks to his legendary sex drive. "Shall we find out?"

Spike didn't need to be gentle, as he found Octavia's pussy already well-lubricated pussy wide and open for his cock. Yet, the further Spike thrust in, the tighter she found her, and it was no secret as to why. "You're tight, no cock has been up here."

"No, Master. I'm offering up my virginity to you. Break in my pussy, as you break your slave." Octavia cried, tongue rolling out her mouth as Spike sped up.

"As you wish." Spike seized Octavia by the Cutie Marks, squeezing the musical notes between his hands. She was soft and squishy, a consequence of her inflated ass, thus he was able to play with it like pillows.

"AHH, that feels so good, Master! Please more, more, more!" She cried, her heavy breasts swinging with every thrust as they continued their wild passion. Spike could feel the sweat on his scales as he came close to his second climax. "Please fuck this cumslut, Master! Think of all my clients, the uptight prudes of the nobility. Imagine if they could see me like this! Your sexy cumslut whore!"

That was enough for Spike as soon, his cum was leaking out of her. She cried out in her own orgasm, like all slaves, she had been programmed to cum with her Master, or at his command. He pulled out, and fell onto the bed beside her, with Octavia snuggling up along her body "Thank you, Master, I can only reward you with my service."

"Good enough for me."

Author's Note

So I plan to do things a little differently going forward. From now on every vote chapter will be one of the one-off chapters, so we'll get to see more side content. So this way we can get to see other members of the harem in their new day-to-day lives.

So the next chapter will be the next vote chapter, a background vote that'll include both Ponyville and Canterlot characters. Depending on the character, the next arc might have Rose and Chrysalis working together to corrupt somepony.

I hope you enjoyed this chapter in any case.

Crowdfunding for Future Artwork here: https://ko-fi.com/darkstar239

Any suggestions, feedback, and constructive criticism are welcome.