"Oh no...this is bad..." Twilight mumbled.

"What?! whats bad?!" Fluttershy panicked beside her.

"well...not bad for us..not exactly. We're perfectly fine and healthy, because we all...have Rainbow Dash taking care of us. But after checking each sample the result is the same. Somehow the spell has woven itself into the very fabric of our beings and bound us to her, all of us. Rarity included. Now here is where things get bad." She warned, the pegasus nodding slightly.

"Because of the nature of the spell we NEED Rainbow Dash in order to keep ourselves under control because she is the catalyst for the spell. Its key component. Without her to keep us in check, we would lose our minds. Sadly thats not the worst of it..."

"It gets worse!? What could be worse than losing your mind?!" Pinkie begged, popping in out of nowhere. Twilight sighed, holding some papers in front of her in her magic.

"According to my research...should we lose our minds...our bodies will focus on the one thing it needs most at that time which would be Release." she explained, both mares staring at her. Twilight sighed again.

"An Orgasm, but the problem here is that the spell is tied to Rainbow. Simply climaxing alone or with anyone other than Rainbow Dash won't settle it. So if one of us lost ourselves to the spell...we'd hone in on the closest mare and...theres no other way to really say it...It'd be horrible." she paused for a moment, trying to think of the best way to explain their situation

"Any mare unfortunate enough to be near one of us in such a state would most likely be raped and due to the potency of our seed, impregnated. But it wouldn't satisfy the need. The pony would just continue, on and on, in never-ending lust until she finally found her way to Rainbow. We're talking about a Baby pandemic on our hooves. Every mare in Ponyville is in danger of being a mother far sooner than many of them should be." She finished, hoping she had made her point

"Whats so wrong with being a parent?" Pinkie asked, "I'd have plenty of babyshowers!" she cheered.

"You don't understand. First, it'd be against their will. Second, there is no saying how far one of us would go with a mare if we caught one in such a state. We could exhaust them into nothingness and the spell would just push us on until we satisfied ourselves, but it can't be done without Rainbow." the unicorn continued her explanation

"So a lot of innocent ponies would be hurt..." Fluttershy added.

"Oh...thats bad..." Pinkie mumbled.

"On top of that...there is a three-to-one Ratio of mares and stallions in Equestria. Heck there are only a hoofful of stallions in Ponyville, though there are more in Cloudsdale, there are still more mares. Meaning if EVERY single one suffered an attack from one of us...just ONE! It could very well destroy this town and effect larger parts of Equestria as well. Applejacks farm ships out apples to several major cities, Cloudsdale has branched out its services to nearby towns and has connections in Canterlot! We are looking at a possible breakdown of civilization here..." Twilight said solemnly.

"So...all we have to do is buck Rainbow silly when an urge hits us and the world is safe?" Pinkie asked with a happy smile.

"well thats one way of putting it. But while we've all accepted this, theres still Rarity to worry about. If we don't convince her she needs to be with Rainbow..."

"WHY IS IT STILL HERE?!" Rarity screamed in frustration, slamming her head against her bedside table. She had eaten Twilights stupid leaf and the feelings of pleasure it gave her had been beyond anything she could have imagined and for five glorious minutes she had been normal once more.

But then the horrible thing had reappeared, aching even more than before. In desperation she had stroked herself to climax, several times, but still it remained. Over time her body had only grown hotter. She needed to relax.

"Tea...tea always helps me relax..j..just have to...make it to the kitchen..." the mare muttered to herself, thankful that her sister had left to go crusading with her friends. She panted slightly as she made her way to the kitchen, barely able to focus her magic against the throbbing ache, pouring herself a small cup of tea and cradling it in her hooves, simply staring at her own reflection in the small pool of brown liquid.

She knew it was her own reflection staring back at her, but her body screamed "Mare" and her appendage throbbed once more, causing the mare to groan with need. She shook her head, setting the cup aside and settling for pacing about her kitchen in silence.

"Ok Rarity...Twilights cure didn't work...not entirely. That one little leaf just wasn't enough. I'll just go back and get a few more and see if she can't spruce up a potion for me. I'm sure she's already thought of a cure. She's a smart mare." Rarity argued, focused on convincing herself that her current plan of action would work. Her ear twitched as the doorbell rang.

"A customer? Now?!" She panicked, quickly tossing on a clingy dress and ignoring the pain as she limped towards her door, opening it with a quick flick of magic and smiling.

"Oh, Miss Cheerilee, its so nice to see you! What can I do for you today dear?" Rarity asked, her smile a bit strained and her thoughts fogged by the scent of the mare before her. She had never noticed the perfume the schoolteacher wore. It had such an...alluring nature about it. Rarity found herself moving closer to Cheerilee, barely hearing her mention something about Sweetie Belle and tree sap.

"Oh, well thats a shame. Lets talk it over with a nice cup of tea, shall we?" Rarity invited.

"Well...I suppose it can't hurt to relax a little..." Cheerilee smiled as she followed Rarity, failing to notice as the door locked in Rarity's magical aura. Rarity smiled, nudging the mare towards the kitchen.
"Oh of course darling. A little relaxation is just what both of us need."

"Uh oh..." Pinkie mumbled as her left ear crinkled and her forelegs twitched.

"What?!" Fluttershy and Twilight panicked.

"Um...well...its Rarity..." the earth pony said quietly. All three mares looked at one another, bolting for the door and out into Ponyville.

"Lead the way Pinkie!" Twilight yelled, Pinkie saluting and zipping off towards Carousel Boutique.

"I just hope we aren't too late Twilight..." Fluttershy said from beside her as they ran.

"I hope so too Fluttershy. Some poor mare could be trapped by her right now. I should have acted sooner." Twilight berated herself, blinking as Fluttershy stopped in front of her.

"Fluttershy we don't have time t..." Twilight tried to argue, blinking as Fluttershy put a hoof against her lips.

"Stop it." the pegasus said quietly. Twilight tried to argue once more, only to have the pegasus glare at her.

"You've been doing everything you can Twilight. Beating yourself up over things you couldn't have known until now won't help us." she said, smiling and hugging her friend before turning around and chasing after Pinkie Pie. Just from outside they could hear that...something was going on inside the Boutique. Fluttershy was the first to make her way inside, quickly followed by Twilight with Pinkie bringing up the rear.

"RARITY NO!" they yelled together, blinking and staring at the sight before them. Rarity lay, pinned on her back with a very embarrassed Cheerilee sitting on top of her, mane disheveled and sticking to her face. Rarity groaned and rolled her eyes, too far gone to care who saw her in her current state. She whined, bucking her hips slightly, drawing a moan from the schoolteacher and shaking everyone out of their daze.

"Rarity this isn't going to help. I've done some experiments and the only way you can finally get over this need is to be with Rainbow Dash!" Twilight explained quickly.

"Um...i'm not sure I understand..." Cheerilee managed to say, gasping as Raritys' hooves found her flanks.

"I am a little busy at the moment girls...can't you come back another time?" Rarity asked quietly.

"No, we can't! Cheerilee, I don't know and I don't want to know if this is by choice or not, but you are risking a lot right now if you go through with this. Just one drop of her seed and you'd be a mother." Twilight managed to say. Cheerilee bit her lip and sighed.

"I...I'm aware of the consequences Twilight and I appreciate you trying to help...but its been...longer than I'd care to admit...I'd at least like to enjoy the company." the mare mumbled quietly.

"Its ok! I'll start the babyshower!" Pinkie cheered.

"Pinkie! you can't be serious!" Twilight yelled. The party pony pouted as she turned to her.

"But you said its only bad if a pony gets hurt and she wants to be with Rarity so we should be happy shouldn't we?" Pinkie asked.

"She has a point Twilight..." Fluttershy added.

"Wonderful! thats all settled, now if you don't mind..." Rarity said through gritted teeth.

"Um...ok then. We'll just be outside...." Twilight mumbled, leaving Rarity and Cheerilee to finish up. An awkward pause filled the air as Cheerilee exited Rarity's home, having washed up quickly. She gave them each a smile as she made her way into town, an irritated Rarity making her way outside.

"Twilight, PLEASE tell me you have a cure." Rarity begged.

"Not exactly..."

Rainbow chuckled to herself as Applejack nuzzled her in her sleep. It didn't matter that her new toy had vanished after their first time, she realized when Applejack had laid her in bed that she cared deeply for each of her friends. The added package was just a bonus really.

Though she had enjoyed herself, several times over, with Applejack, she still felt that annoying itch and had worn out her current companion and was all too comfortable in her muscled grip. The pegasus sighed and wondered to herself what would happen next. Though that question answered itself as ponies entered the Library.

"FOR THE LAST TIME RARITY, NO!" Twilight yelled, followed by a loud THUMP. Rainbow managed to slide out of Applejacks grip, making her way downstairs to find a pleading Rarity on the ground and Twilight arguing with her.

"We're both unicorns! So maybe if we...then I'd..." Rarity stammered desperately.

"I SAID NO! Just wait for Rainbow Dash. Girls, please keep an eye on her, I need to go clean up..." Twilight mumbled, Pinkie Pie saluted, shifting into a guard-dog stance and growling quietly at Rarity. Twilight rolled her eyes at her friends antics and made her way upstairs to wash off from Rarity's advances. Rainbow grinned as she spotted the mare.

"Everything ok Twi?" Rainbow asked, the unicorn blushing and clearing her throat.

"Well...No. According to my research everything is not ok and if you don't help us its going to get worse. Its already worse for Rarity." Twilight explained.

"Yea, I heard some of that, mind fillin me in?" The pegasus asked.

"Well...first off, you should take a deep breath and relax...""

"ok..." Rainbow said as she took a slow breath.

"You might be pregnant." TWilight said quickly. Rainbow Dash only stood there, completely frozen to the spot. Twilight bit her lip, waving a hoof in front of her friends face

"WWHHHAAAAAAAAAAAAAAAAAAAAT?!" Rainbow screamed, grabbing Twilight and shaking her.

"I AM NOT READY TO BE A MOM! DO SOMETHING!" She continued to scream.

"Rainbow! Calm down!" Twilight yelled as the mare shook her frantically. Rainbow slowly let go of Twilight, taking a slow breath and swallowing, her throat suddenly very dry.

"So...w...what are we gonna do?" Rainbow asked quietly. Twilight bit her lip.

"Well I can do a check and see if you are pregnant and...if you decide not to have it...I can make a special tea...but..." Twilight sighed.

"Yea...I get what you're sayin Twi. I don't think I'd be able to do that anyway. Ok, so, there might be a little me running around here, thats not so bad..." Rainbow mumbled.

"Well...theres still one problem...without you to keep us...ahem - relaxed, we'll become a bunch of sex-crazed breeding machines. So...there might be more than just one little you running around, unless we can find another way..." Twilight gasped as she was hefted onto Rainbows back and carried down to the basement.
"Get to work." Rainbow demanded.

"They've been down there a long time, do you think everything is ok?" Fluttershy asked, looking over at Pinkie Pie who had hogtied Rarity and was sitting beside the mare.
"Hmmmm, maybe they decided to have some fun?" Pinkie remarked, giggling as Fluttershy blushed.
"Hehe, I know thats what I would be doing." the party pony pointed out.

"NOT HELPING!" Rarity yelled as she struggled against the ropes. The other two mares in the room were surprised she hadn't tried magic yet, though neglected to mention such thoughts aloud.
"Why don't you go take a peek Fluttershy? I'll keep an eye on Rarity." Pinkie said with a smile.

"Oh...um...Ok I guess..." Fluttershy said softly as she made her way downstairs.
"T-Twilight? Ra-Rainbow Dash?" Fluttershy called out quietly, letting out a small eep as Rainbow pulled her into the room.

"Shy, relax, its me. We uh...got some stuff we need to say." Rainbow mumbled. The yellow pegasus nodded, looking between her friends.
"We uh...well..."
"Rainbow Dash is pregnant...You're the 'father'"

Author's Note

If enough people want to see the full scene between Rarity and Cheerilee I might add it as a sub-chapter