Starlight Glimmer hummed a small tune as she made her way through the castle of friendship, her arms filled to the brim with scrolls, books, quills and a few rolls of paper just in case. The mare was in high spirits and walked down the crystal halls with a pep in her step. She didn't know how Cheerilee had convinced Twilight to stud for the festival, or why her teacher had asked her to do so much research on stamina, endurance and cleaning spells but she was more than happy to help.

The former despot turned a corner and walked the last little bit to Twilight’s personal study before knocking twice on the door. “Twilight? I brought everything you asked for, are you still in there?”

Starlight shrugged when she got no response and pushed open the door, hoping her teacher was decent this time. She walked in and looked around, instantly noticing the massive wall of mathematical equations that were intermixed with arcane formula. “Twilight?” The girl muttered, looking around the cluttered study in search of the titular alicorn.

“Oh hey Starlight!” Twilight announced, suddenly landing in front of the other girl.

“Bwah! Stars above Twilight what were you doing above the doorway?”

The alicorn shrugged her winged shoulders. “I ran out of room for my calculations.”

The unicorn blinked and turned around, noticing that the only empty space left along the walls was indeed above the door and had been replaced by another blackboard filled with formula. “Huh.” She muttered, shaking her head slowly.

Twilight picked up the stack of supplies from Starlight’s arms and placed it on the sole empty spot on the desk. “Oh hey, thanks for getting those for me Starlight.”

“Of course…” The unicorn mumbled, studying the myriad of equations scattered across the multiple blackboards. “What exactly are you calculating?”

“Well, as you know I am volunteering for the Festival Of Life this year. Unfortunately I’m the only volunteer and to make matters worse word got out that it was an alicorn studding and a huge amount of ponies have signed up this year.” The alicorn waved a hand towards all the math. “Thus I needed to do a little studying to ensure I could complete everything in the ten days of the festival.”

“Which would be why you asked me to do all that research into those spells…” Starlight added, peering intently at a random blackboard.

“Thanks again by the way. I may have earth pony endurance now but even Big Mac would have a hard time keeping up with the sheer amount of mares that signed up this year.”

“Right.” Starlight pointed to an equation seemingly at random. “What is this one about?”

Twilight blinked, peering at the wall of spell formulas. “Oh, that one. I needed to figure out just how many spells I could place on my body without running into complications.”

Starlight cocked her head, awestruck at the massive equation that she now realized, dominated almost all of one of the blackboards. “That sure looks like it took awhile.”

“It was a little more intensive then I had first thought, but, I did come up with good news in the end!” She pointed to a seemingly random number in the center of the equation. “It turns out that since alicorn’s are essentially part magic, our bodies can handle a ton of enchantments relatively easily.”

Starlight blinked at the number Twilight had pointed to. “That's nearly four hundred Starswirl’s of energy! Are you sure your math is right?”

Twilight nodded. “I checked it four times, alicorns are just strange like that.”

“Huh.” Starlight rubbed her chin, glancing over the many arcane formulas that dotted the blackboards. “And what are all the spells you planned to use?”

“Well, it turns out my body can just barely support everything I would need.” The alicorn pointed to a group of scrolls hanging from the side of the board. “This one increases sperm count, that one decreases refractory period, the ones you brought obviously handled stamina and endurance and finally these two combined ensure that the I will impregnate the mare after only a single attempt.”

“Margin of error for enchantment load?”

“Only two percent, easily within acceptable ranges.”

Starlight blinked, taking a step back. “I gotta say Twilight, you did a lot of great work. Maybe after this is all done you should publish all this effort you've put in.”

The alicorn tapped her chin, glancing around at the aforementioned work. “Now that you mention it, this could probably help a lot with other festivals. Good thinking Starlight.” Twilight leapt forward and hugged the other mare suddenly.

Starlight blushed, hugging back only slightly. “N-no problem.”

Twilight gasped suddenly and pushed the other mare to arm’s length. “Do you want to help me double check my findings?”

“Do I?”

Spike took this moment to cough and shake his head. “Nerds.” The dragon rolled his eyes and continued down the hall, ignoring the scowls of the two ponies.

“Philistine.” Starlight muttered.

Twilight gasped, slapping the other girl’s shoulder in mock disgust. “Starlight!”

The unicorn shrugged. “What?”

The alicorn rolled her eyes. “So, where do you want to start?”

Starlight looked over at the wall of math. “From the beginning.”

Twilight smiled confidently, spinning over to the other side of the room and pointing at an equation. “First we start by setting our goals.” She pointed to a short list on one of the blackboards. “We need to get as many mares pregnant and ensure they enjoyed themselves. Which leaves no time for foreplay.” She frowned, before spinning over to the next blackboard and continuing her explanation in her strange, sing songy voice.

“We assume each session takes only fifteen minutes after setup” Twilight sang.

“And only five more for clean up.” Starlight added, joining into the song.

The alicorn grinned before taking the other girl’s hands. “In that time we must use Zecora’s creams to ensure I don't get sore or chafe.”

“Gotta make sure you stay safe.” Starlight added.

“But in order to make sure they have fun I’ve bought on my friends!”

Starlight nodded. “A sound idea that will pay dividends.”

“With their help and yours this festival will be a success!”

Starlight shook her head. “There is one thing we must address.”

“Yes?”

Starlight shook her head and scratched out a quick calculation. “Have you considered the time necessary for a break?”

“Of course, this will be strenuous and I don't want to cause any extra ache.” Twilight pointed to another line of math. “They will each have a one hour shift before taking a break to recuperate.”

“Are you sure that's enough wait?”

Twilight nodded. “We will take a big break in the middle of the day. That should keep the aches and pains at bay.”

Starlight nodded slowly to the sound of the beat, studying the mare’s math slowly before spinning around suddenly. “Have you studied the estrus cycle of the average mare?”

Twilight nodded. “Three cycles a year, varying on health weather and food is the average fare.”

Starlight gripped the other mare’s hips, pulling her in close. “Aha, but did you know that cycles may change?”

Twilight let herself be guided by the other mare, spinning around the work filled room before suddenly taking control and guiding them in the other direction. “Three to seven days is the usual range.”

Starlight grinned, dancing in step with the larger mare. “Did you know most mares nowadays have a cycle of one full week?”

“This should be easily handled by the aforementioned technique.” Twilight smirked, stopping suddenly and sending Starlight spinning to the end of her arm.

Starlight followed the moves perfectly and rolled back into the alicorn’s embrace a smirk on her lips. “Late or early, it's all scheduled out?”

“With the ten days we should be fine, of that I have no doubt.”

The unicorn frowned slightly, nearly causing the pair to misstep in their strange, gaunty waltz. “And you made sure to take enough time out for you?”

“Three breaks equalling two hours should see me through.”

“And with a ten hour shift-

“And three sessions an hour.”

“Times ten days-”

“And possibly three festivals a year.”

“-is nine hundred pregnant mares in the first year of your career!”

The two ponies stopped suddenly, the music fading into the distance. “Wow. You two are the biggest nerds I’ve ever seen.”

Twilight and Starlight both turned to the dragon who leaned against the door, chewing an emerald loudly as he watched them. Twilight crossed her arms over her chest. “How long have you been standing there?”

“Right about when you two started singing a harmony song about math and knocking up a whole lot of ponies.”

Starlight face palmed. “Augh. Am I ever going to live this down?”

Spike smiled a toothy grin. “Nope!”

“Augh!”

Author's Note

There might be a few errors left so if you see em pm me or leave a comment.
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