Sharing a Body: Twilight and Rainbow Dash Part 1

Annoyingly, while they proved capable of standing, walking was another story. But they needed to master it if they were going to get anywhere, literally. Unfortunately for them, having your legs controlled by two different ponies is not as easy as it originally sounded. They communicate when they were ready for the other to move there leg, then took a step.

Twi took a step, then Dash took a step, then Twi again, then they fell over.

They got up and tried again. Dash took a step, then Twi took a step, then they fell over.

Dash stepped, Tw stepped, Dash stepped, Twi stepped, Dash stepped, fall.

Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, fall.

They kept trying to move on two hooves over and over till eventually they got it. It was all about finding a balance, and relying on the other to move once they were confident of the other.

Twi, Dash, Twi, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash,Twi, Dash, Twi, Dash, Twi, Dash, Twi, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Fall, Get up, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Twi, Dash,Twi, Dash, Fall, get up, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash,Twi, Dash, Twi, Dash, Twi, Dash, Twi, Dash, Fall, Get up, Dash, Twi, Dash, Twi, Dash, Twi, Dash,Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash,Twi, Dash, Twi, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Twi, Dash,Twi, Dash, Twi, fall, get up, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, Dash, Dash, Twi, Dash, Twi, fall, etc.

After 20 minutes from being fused they make there way back to the study, Twilight starts doing physical and magical tests on them self.

Spiritually speaking, they were still two separate ponies. Twilight and Dash both had there respective heads with no intrusion of thoughts or emotions from the others. There souls were still separated as far as she could tell. Twilight had no control over the right, Rainbow had no control over the left. Neither could feel the others side of the body at all, except down the central line of there coats (which unfortunately included there singular clitoris, meaning they would both feel the same arousal to both heads). Twilight was still capable of magic, and theoretically they could still fly given there wings were now the same style, when previously they were different.

Physically it was another story. There bodies or body was one in function. Although aside from there coats and tails, along with the obvious of two heads, there body was the same on both sides without a seam aside from there color down the middle between there heads. They seamed made for one another. They now shared blood and organs. Twilights heart providing nutrients for both. If Dash held her breath then Twilight had difficulty breathing. There two throats lead to one stomach. And there spine divided just above there respective wing. Oddly despite having the same central nervous system and spine, they had no control or input from the other's side of the body, even though according to Twilight they theoretically should.

With Twilight's indicial tests done. They sit at Twilights desk were she begins levitating over books over to find a way to separate them. Star Swirls book didn't have a counter, obviously. But maybe she could modify an existing spell for them to use.

Twilight sat scribbling notes on parchment with her left hand (good thing she was left handed) and mumbling magical formulas to her herself while Dash was patiently to the right of her in the same uncomfortable wooden chair, tapping her hoof on the floor nervously and occasionally asking Twi if she had a counter spell yet, only to be met with 'no' every time, to her ever increasing annoyance. Dash tried to sit still, but there was nothing for her to do but watch Twi do egg head stuff. The library was Dash's least favorite room in the castle, all these books meant nothing to her. She never understood why some pony would hoard all this paper and read all day when there was an entire world of adventure just outside. But she knew to Twilight they meant the world, so she didn't bring it up.

This continued on for a while until.

"Twi?"

"Not yet Dash." Twilight responded without looking up and crumbling up another piece of paper to add to the ever growing pile.

"Not that." Dash quickly amended.
"I... I gotta go to the bathroom..." Dash's muzzle turned bright red as she said it like some filly asking permission from the teacher.
"I know." was all Twilight said. Rainbows face turned an even darker shade. She had been holding it in for around an hour and a half in the hope of Twilight finishing the spell quicker. "I have to go to."

"You.. you do?"

"Mmmhm." Twilight was drawing magic circles again. Using her horn to make the circles perfect. "Had to go for abound an hour now."

Of course she had to go, they had the same bladder. Rainbows face somehow got even redder.

"Why didn't you say anything?" Dash breathed out exasperated.

"Because I can hold it in." Twi shrugged and got to work on the symbols around the circle.

"Well I can't!" Rainbow Dash shouted.

"Ow" Twi said reminding Dash not to shout when there heads were so close.

"Sorry." she whispered.

Twilight turned to her and smiled. "Does Dashie Washie need to potty?" Twilight said in a mocking folly voice.

Rainbow blushed more than she ever had in her life, turning away from Twilight before nodding to herself.

"Fine, I can use a break anyway." Twilight commented as she finished drawing a few symbols, stretching her arm above her head and letting out a long sigh that made Dash blush grow even more.

They counted to three then stood up and started walking all the way to the bathroom. Dash, Twi, Dash, Twi, Dash, Twi, Dash, Twi, Dash, Twi...

~~~

Once they got there it finally sunk in for Twi just what they were about to do. Going to the bathroom with another mare seamed simple in her head... But actually sitting on the bowl next to Dash waiting for her to finally relieve her self was the second most awkward thing to happen to her since becoming an alicorn. The first she swore to never speak aloud again. So they sat, avoiding eye contact, waiting for the tell tail sound of flowing water so they could leave.

"Would you just do it already?" Twilight finally broke the awkward silence after what felt like days.

"It's harder than it looks." Dash said still trying to hide her blush from the mare she was sharing shoulder space with.

Twilight huffed then said "Come on Dashie, just relax so we can get back to th--"

"Stop that." Dash interrupted.

"What?"

"Calling me Dashie… it just, feels weird. And stop flirting to."

Now it was Twi's turn to blush. "I... was just joking around to make you more comfortable, you've made passes at me in the past. I wasn't flirting with you... " she said looking away.

"They what's with all the smiling and calling be 'Dashie'? It's like you wanted this to happen some how." Rainbow said.

Tears started to form in Twilights eyes.

"You think I wanted this some how?" Twilight started. "I've been freaking out about not finding a counter spell. The thought of spending the rest of my life with only half control of my own body is horrifying to me, and having it controlled by a mare as mismatched as you is maddening. To share a vulva and ass with the mare who calls me 'egg head' and nerd? To be attached at the hip to an athlete who only ever reads the dame series over and over? To be sitting on a toilet waiting for a mare who became a Wonder Bolt to relieve herself?" Dash backed away as far as she could from Twilights face. Which was only a few inches. "No offence Rainbow Dash. But your probable the last pony in Equestria I want to be stuck to."

Dash was speechless. Twilight Sparkle, the alicorn princess of friend ship was just as worried about there situation as she was. Dash's fears of having an egg head co piloting her body was the same. The thought of having to go to the bathroom, shower, get dressed, all together all the time was stressing her out to. It was eye opening. She didn't know what to say to make Twilight stop crying. They it came to her.

"So, I'm even worse than Pinkie Pie then?" Dash said.

A nightmare suddenly flashed through Twilights mind of it being Pinkie stuck to her instead of Rainbow. All her yelling. The Pinkie sense. Her random mind going in 2,000 directions at the same time. She would have lost her marbles.

"No!" Twilight said defiantly. "Not Pinkie Pie. Never that."

Dash suddenly started giggling to her self. Twilight, realizing Rainbow was just messing with her started laughing to. Soon they were howling like monkeys and didn't even hear when the urine finally came out of there shared bladder.