Author's Notes:

Apologies for any inconsistencies with previous chapters, it’s been a year since I last wrote and can’t remember exactly how I referred to everypony. I was going to continue this story as i had lots of new ideas with season 5, but I think this has now had it course. Hope you enjoyed it.

The dust settled and the centaur raised himself from the ground.

“It appears we are at an impasse.” Lord Tirek half mocked, dusting himself down from the epic battle “How about a trade, Princess Twilight? Their release for all the Alicorn magic in Equestria.”

Princess Twilight stood nearby, panting slightly, staring at the massive creature who was now holding her friends hostage She had to think about exactly how to end this, as raw magic wasn't going to be the answer - Tirek had too much power for her to overcome him.

Discord had been sent to capture Tirek, but they had underestimated how strong Tirek was, and how weakened Twilight had made him. This allowed Tirek to steal his magic. With half of the draconequus's power in him, Tirek made it to the Crystal Empire before any warnings arrived, allowing him to steal her brothers and Princess Cadence’s magic as well. With Twilight being the most powerful creature in the land, Celestia and Luna had transferred their power to her ready for a final fight.

This made the two of them fairly evenly powered, leading to the stalemate they were in. Tirek stared down at the little pony “So what will it be Princess, your magic for your friends, or will you watch as I kill them one by one?”

“I will defeat you Tirek!” Twilight shouted back, charging her horn ready to attack again.

“Oh, you and whose army?”Tirek sneered back

“Mine!” a voice roared out loudly as Tirek found himself being pummeled by the combined magic of Queen Chrysalis and her entire drone army.

The shock made Tirek lose focus on the bubbles containing the other bearers of the elements, Spike and Discord, making them disappear. As the seven creatures fell towards the ground, a pair of drones dived towards each and brought them safely down to the ground next to Twilight, who was blasting Tirek with her own magic.

Whilst the power of each changeling wasn’t significantly powerful against Tirek, the hundreds of small blasts were impossible to ignore. Also, being nibble flyers, he was overwhelmed on where to look in order to focus his own attack. However, Twilight and Chrysalis both knew that the distraction would only last so long before the changelings tired and Tirek started to pick them off.

The changeling queen landed next to the alicorn and turned to her “We can hold him for a while...any idea on how to defeat him?”

“No!” Twilight replied “I was doing some research but he blew up my library!”

“There must be something we can do!”Rainbow Dash called out.

“The chest” Discord shouted “The chest will defeat him. We just need to find the sixth key”

“But we have no idea where it is” Fluttershy meeped.

“And Tirek’s not going to give us much time to find it!” Twilight added, her face straining as she continued her fire.

“You lot go and find the key, me and my swarm will distract him...here”

Chrysalis took off her crown and handed it over to Twilight. Seeing the purple pony’s confused look, she explained “If Tirek gets me, I won’t be able to control my swarm. You will be able to command them using this. The crown controls the whole swarm.”

Twilight stared in disbelief “Your...your giving me your swarm?

“For you my love, I would give you anything” Chrysalis replied, before closing in and giving Twilight a passionate kiss. Before Twilight had a chance to stop her, Chrysalis had taken flight and joined the battle alongside her changelings.

Twilight looked at the crown in her hooves and saw a soft rainbow glimmer shine across it’s black surface and a rainbow shot around Twilight’s retina. “It’s the key...quick, to the tree of harmony!”

With Tirek sent back to Tartarus and with the magic of friendship flooding across Equestria to restore everypony’s magic, Twilight went searching for her lover. She found the changelings gathered around a small crater, where the Queen lay in the middle. Twilight rushed up to her and gently took her head in her hooves “Are you okay?”

“Yes sweetie” Chrysalis replied “Tirek caught me, drained my magic and I plummeted to earth. However, with my magic restored I’m healing nicely.” The changeling queen stood up and looked around at the destruction that had been undone “I presume we won?”

“Indeed, thanks to you.” Twilight replied, and leant in for a kiss. However, the moment was interrupted as a giant castle sprouted out of the ground. The pair flew over to it, where Twilights friends were gathered around it.

“Sweet Celestia! Are you all seeing what I'm seeing?” Chrysalis gasped

“But... whose is it?” Twilight replied

“I believe it is yours, Princess Twilight.” Celestia answered. All the other ponies present bowed as the three other Princesses appeared, whilst Twilight rushed over to give the three of them a hug. After quickly filling them in with what happened, and being told of her new Princessly duties, Twilight’s returned to Chrysalis side who looked very down.

“What’s wrong?” Twilight asked, nuzzling her gently.

“My crown is gone, and so I have no swarm anymore. Thousands of years of changeling society will disappear without my control...why are you smiling? This is a horrible thing.”

“Darling, turn round” Twilight half giggled. Chrysalis did and she saw rows of changelings lined up, waiting.

“What are they doing?”

“Waiting for your orders I reckon.” Applejack replied.

“But...but I don’t control them anymore?” the Queen replied in shock.

One of the changelings came forwards and turned itself into a pony form “My Queen, for centuries we have not followed you because we had to, but because we wanted to. Forced control died out many generations ago but you, our Queen, has always put us first. So we have followed. That doesn't change after today.”

The was almost a tear forming in Chrysalis’s eye “But...I gave you up to Twilight. She is now your Queen.”

“We’ve considered Princess Twilight to be part of our swarm for many months now... your feelings for her are quite clear. We would have taken instructions from her as they were from you for a while now.”

Twilight stepped forwards and bowed to the changelings “I am honoured that you have taken me into your swarm. My castle -” She turned to Chrysalis and her friends “-our castle seems big enough for an entire swarm to live in I would say...when you're not on tour of course!”

Chrysalis literally pounced on Twilight and kissed her deeply “I really don’t deserve a marefriend like you!”

“No, no you don’t” Twilight teased.

After a tiring day of epic battles, new homes and a quick celebratory song, everypony found their way to their homes...old and new. The changeling swarm found a huge basement level to the castle they were going to transform into a new hive and work began in setting up their sleeping arrangements. This left Twilight, Chrysalis, Spike and Rarity who had stayed with her partner, exploring the rest of the castle. They had found a few bedrooms on the highest floor - one was set aside for Spike who he wasn't staying over at Rarity’s, one for Chrysalis and the largest one assigned to Twilight.

“Do I really need a room of my own?” Chrysalis asked as they finished looking around the top of the castle.

Twilight blushed a bit as Rarity and Spike looked on cheekily “Well, it will be good to have a space of your own. For if I’m away or something.”

“True” Chrysalis purred as she leant into Twilights ear and whispered “But like my little cuddle partner to be near me as much as possible.”

Whilst Rarity and Spike hadn't heard that, the fact that Twilight’s wings sprang out indicated the sort of thing that has been said. “Well, darlings, if you don’t mind I’m going to head home tonight. But I’ll be back tomorrow to help Spikey-Wikey decorate his room.”

“I’ll stay here tonight...going to have to get used to a new home sometime and no time like the present!”

“Of course Spike, I understand” the unicorn replied, gave the dragon a little kiss, and made her way home.

Twilight and Chrysalis bid Spike a good night and retired to Twilight’s room. The castle had created all the furniture and basic furnishings required, but still would need a trip to town the next day to pick things up.

Chrysalis just collapsed onto the bed, but Twilight had plans. She gently rolled Chrysalis over onto her belly, and climbed onto her back. The alicorn started the gently massage the changeling queens back.

“What are you doing?” Chrysalis asked.

“You’re a national hero now, and according to every foals tale there is, a Princess always rewards their hero” the alicorn replied as sultry as possible.

“That does sound nice, but I’m still a little tender from my impact. Can we do this another night?”

“Don’t worry, I’m just as sore from the fight. I’ll be very gentle, my dear sweet hero.”

Twilight continued to massage between the wings of her lover, but started to gently use her feathery wings to gently stroke across the changelings bug like ones. A contented sigh from Chrysalis told Twilight she was doing something right, and a smile formed on her face. Twilight then alternated between massaging the wing base and stroking the sides of the changeling body, mixing up hooves and feathers. The back massage lasted a good half an hour until Chrysalis was so relaxed she was nearly asleep.

Twilight then gently turned her sleepy companion over and placed a soft kiss on the lips. After a few more pecks, Twilight started to place kisses down Chrysalis’s body.

“Twilight…”

“Shhhhh, you deserve this my Queen. Let the Princess of Friendship show you what your friendship means to her. Besides, we need to break this new bed in.”

Twilight continued the slow slide down Chrysalis’s body, gently kissing or sucking on the scaly skin beneath her. She paused as she hovered over the beautiful sight of her lover's breasts. She had always meant to ask why exactly the changeling had teats given they didn't feed their young milk, but right now that didn’t matter as they were useful for another purpose. Although the question was written down on a nearby scroll for future answers.

Twilight lowered her mouth and gently began sucking and licking the tender flesh, eliciting a deep moan from Chrysalis. With one of the nipples nicely budding up under her mouths attention, Twilight placed a hoof gently on the other and started massaging the teat, the soft frog gently tickling one of the few soft places on a changeling body.

Twilight had usually always resorted to magic at some point in her lovemaking, at least when it wasn't taken away from her. However, she wanted to really treat the changeling the old fashioned way with her body. Switching her mouth and hoof, she could already sense the warmth of Chrysalis’s desire on her neck.

Knowing her lover was ready, Twilight moved her focus down towards her ultimate goal, starting with a long slow lick across the marehood, followed by a few focused licks on Chrysalis’s swollen clit, before repeating with a downwards movement. She moved her head away to allow her front hooves to gently tease the soft flesh, before diving back in again.

With the pleasure building up, Chrysalis gripped the bed with her hooves. She was used to either having to help a bound Twilight, or having her own body bound instead. Having a freedom to move made it awkward to know what to do, although given how tired she felt there wasn’t much she felt up to anyway except for gripping with her outstretched limbs.

Sensing the changelings movements, Twilight hooked her forelegs around Chrysalis’s hind legs to keep them spread apart, although the changeling had no intention of trying to prevent any of the attention from her lover. With Twilight also pinning down her tail with her body, there was no way to hide her marehood anyway.

The pony continued to entertain her lover, switching between her tongue for accuracy and her whole muzzle for a different sensation. This also allowed Twilight to alternate between tasting and smelling her lover. Shuffling her muzzle deep into the folds, twilight breathed out deeply creating airflow over the moist skin, making Chrysalis shiver with delight.

Sensing her partner was near, Twilight focused a few licks of her tongue directly on Chrysalis’s clit, pushing the changeling over the edge. Caught in the throes of passion, the changelings body starting to wriggle around by Twilight kept a tight hold. Twilight lapped up the juices flowing, savouring the bitter taste she had become used to. With her lover exposed below her she was tempted to continue her enterprise and go for multiple orgasms.

However, she knew that they were both very tired and so pulled herself away and up into the waiting hooves of Chrysalis. The two ended up snuggled under the blanket together, and rested peaceful in each others embrace ready to spend their first night together in their new home. However, Twilight had something to say

“Just the one thought. You realise that we are now living together in a combined pony/changeling hive kingdom? Who would have thought that would have happened when you got blasted by Celestia all those centuries ago?”

“Yeah,things really have changed around here...pony citizens of Ponyville, they really didn’t stand a chance at a normal life when you moved into town, did they!” Chrysalis teased back.

Authors additional note - I know the recent comics will counter one aspect here, but this is AU!