Twilight and Rarity hurried across the Eastern ramparts, their hooves clacking loudly on the flagstone, their breasts bouncing wildly beneath their shirts.
As anthrosoldners it was up to them to operate the arcane weaponry reverse engineered from the prototype Sunset Shimmer brought back from the Human World.
In this realm, the ponies didn’t have hands and didn’t stand on two legs, which made it difficult for them to operate the weapons on their own.
However, like the anthrosoldners, the unicorns and alicorns of Equestria possessed an arcane spark within their bodies, the sizable frame of the alicorns in particular housing a proportionate spark capable of providing a serious dedicated power-source for heavier weaponry.
It was just that sort of weaponry they were hoping to find waiting for them up ahead, while all along the wall siege ladders had begun to appear, making them slow their pace to kick them off as they worked their way to the Southern Bastion.
In spite of their efforts, a few flightless Changeling Warriors (anthro) managed to gain the walls and presented an obstacle in their path.
Twilight reached down between her legs and flicked the switch on the arcane absorption cell jammed into her pussy and Rarity did the same, the two of them taking up firing stances as the cables connecting their weapons to their bodies began to light up with the flow of magic as it was siphoned into their weapons.
When the cable’s glow finally reached their guns the girls opened fire on the chitinous creatures, overloading their love-receptive bodies with concentrated bolts of arcane arousal, resulting in spontaneous and aggressive orgasms that left them floored and incapacitated.
The anthrosoldners cleared the way to the Bastion and charged through the entryway as the wall behind them was overrun, Rarity bolting the door behind them.
The rest of the bastion had been locked down, their ingress only left open because they were expected.
A commotion on the floor above lead them up the stairs. They emerged atop the drum-like tower where a portal had just opened, through which Princess Cadence (pony) and Sunset Shimmer (pony) arrived carrying equipment from Canterlot Castle.
On the other side they could see Princess Luna (pony) maintaining the spell when suddenly a portion of the Northern Wall crumbled, demolished by a Changeling Ogre which, thankfully, fell soon afterward.
“I have to go! Good luck!” shouted Luna through the collapsing gate, turning to aid her sister in dealing with the breach.
“Twilight, Rarity, good timing.”said Sunset, sitting down and shrugging off her saddle bags.
“Hey again, uh, Twilight.” said Cadence, embarrassed. “Sorry, I’m still getting used to there being two of you.”
Twilight put her hand on her hip, raising her gun to her shoulder, and smiled. “It’s no problem. I’m happy to see you made it here safely.”
“It was a close thing, as you probably saw.” said Sunset. “I could use some help getting this all hooked up.”
“You go, Darling.” said Rarity to Twilight. “You’re better with this sort of ‘arcana’ anyway. Somepony has to keep an eye on the fighting.”
Twilight nodded, moving to help unpack the saddlebags while Rarity turned to find a ladder appear from the ramparts below, kicking it down and watching with satisfaction as its occupants came crashing down on their compatriots below.
Twilight extracted the pieces of a heavy weapon rig, then turned to Cadence, holding up the harness. “Umm… may I?”
“Oh, of course…” said Cadence. An awkward silence fell over them as Twilight slipped the harness over Cadence’s head, securing the bit and slipping the mythril ring over her horn before drawing it back and fastening it around her waist.
She then connected the power cables to the AAC batteries while Sunset mounted the Charge Packs on either side of the harness.
Moving around behind the princess, Twilight grabbed her tail, holding it off to the side so that both ‘ports’ were visible.
Twilight pressed the cold metal of the first battery against the puff of her anus, teasing it in while the pony princess tried her best not to squirm.
When it was mostly in, Twilight took the miniature ramrod from one of the bags and set it to the small indentation on the flat back of the battery. “Ready?” she asked right before shoving it in as far as it would, without giving Cadence time to answer.
A sharp yip escaped the princess’s mouth, but Twi was already setting the second battery. She slipped it in over her winking clitoris, sending shivers through Cadence’s body that made her legs tremble and her pussy moist.
Incidentally, her wetness allowed the second battery to slide right in, coming to rest right up against her womb.
“All set.” said Twilight, standing as power began to flow from the batteries into the charge packs.
Cadence’s was constantly aware of the sizable foreign objects filling her holes. Her pussy itched for stimulation, but she knew she was not here for gratification, but as a power source.
“Not to alarm you, but the situation on the wall has grown rather dire.” said Rarity over her shoulder, toppling another Warrior to reinforce her bodily barricade of the Bastion door below.
Twilight connected the repeater module to the harness, hoisting the heavy weapon as power was diverted from the charge packs. With Sunset to guide Cadence, the trio took up position beside Rarity.
Twilight opened fire, the slowly revolving barrel spitting out explosive bolts of ecstasy into the crowd below, felling most and driving the rest from the wall. Each shot reverberated through Cadence’s body, trapped on the edge of release.
When the wall was clear their attention turned to a distant cloud of wings to the East, and the moth-eaten dais suspended below.
“I think I may need a bigger gun.” said Rarity, searching the bags and returning with a small harness and a rifle module. She looked down at Sunset Shimmer with a smirk. “Ok dear, your turn to play dress-up.”
Author's Note
Not sure what to say about this one. It’s… weird, not that my other stories aren’t. Been working on this one for probably over a month, on and off. Hope you found it enjoyable. If you did, feel free to give it a like or write a comment. Every little bit helps. 
Cheers!
