Twilight's Science Class

AJ's hooves ran uselessly in midair in her harness, sobbing out love for her fallen friend as her other, mad friend cleaned up the blood and cum. Twilight ignored her, humming as she made meticulous notes and cleaned. She lowered AJ, making the earth pony bellow in rage, finally able to get traction to charge at the alicorn.

The overpowered pony simply summoned magichains, locking Applejack in place, Twilight making note of the surprising amount of magic needed to hold AJ's natural strength. She bucked and snorted, but the chains kept her more or less in the same place.

"Now, now, Applejack! This is important-science, for the betterment of all ponykind! Don't you WANT to further knowledge, to help future generations know their limits?"

"Not like this, ya crazy pile a horseapples!" "Ah! LANGUAGE, Applejack! ...well, with all the gore and sex, I guess I can't be mad at some profanity." she admitted, scratching her head with a hoof.

She levitated over some heavy looking wooden squares, large and flat but thick. "...also, I promise-Applebloom won't be a part of this, it's the least i can do for you." AJ seemed to calm a bit at that. "...thanks, Twi...sorry fer the name callin'." "Oh it's okay! I know how you get about family, it's inspiring really!"

She got the squares in position over her friend's back. "Now...I'm going to test your resilience. I did it with Pinkie too, but with overfeeding. So, instead of from the inside, it'll be the outside!" "...ya know, if it weren't fer the fact ah die at the end, this might be interestin' instead a terrifyin'," "I know, Aj. It's scary... But you'll be memorialized in science! A contributor to furthering the understanding of the earth pony body!"

"...I ain't one fer science, so can we..." she took a deep breath, the alicorn nodding. "Of course." she lowered the squares slowly, letting AJ take the full weight before carefully releasing them. AJ stood. This wasn't so bad...so far, anyway. Twilight took notes, watching. After half an hour, AJ began to shift uncomfortably.

After an hour, her legs began to tremble. The blocks felt as if they got heavier and heavier, her legs bending under the strain. Twilight paid more attention, her futa cock at full mast again. She stroked it with her hooves as she did the notes in her magic. She stopped when AJ gave her a disapproving look. "S-sorry, no more for now."

"T...twi...it's gettin' too heavy..." "Do your best, Applejack! I believe in you!" AJ grunted, annoyed at the friendship bullshit at a time like this. Finally, with a grunt an hour later, her legs gave out, one breaking and the bone ripping through the flesh. She screamed, struggling under the wood. Twilight began to levitate more wood over. "Twilight...wh...what..." "Well, now i know how long you can stand with weight, I'm going to place more on you to see how long your body holds out, like with Pinkie!" She went behind Applejack. "And, well..." something poked the farm pony. "I'm pent up..." she admitted.

Aj tried to scream, to yell at her not to, but the first block prevented her from breathing much, and she could do nothing as the broken leg was a back one. Twilight mounted her, cock sliding into her tight, clenching pussy. "Oh AJ...that's tight...oh jeez, it hurts doesn't it? Well, alright...I dont think this will affect it much," she panted, flexing her hips as she slowly raped her friend.

She carefully levitated a needle over, injecting AJ. A soothing numbness spread, the pain abating slowly. She tried to writhe, but just tore muscles and ligiments she could no longer feel. Since that had been all keeping her broken bones in, they tore through her skin. Again, she could barely feel it, like a dull ache, but Twilight watched in fascination as she made unwanted love to AJ's pony pussy. She took notes on autopilot, eyes wide to take it all in.

Another block on the body, and ribs began to creak. Another, and they cracked. One broke enough to puncture organs, causing even more agony even through the drugs. AJ tried desperately to at least suck in another breath, but all she got was another block, this one breaking her ribs, finally squishing her.

Her guts came out of her mouth, and some out of her ass, but Twilight never stopped fucking her cunt, blowing her load during the deathgasm clenching. She pulled out, studying the blown out asshole, before she wrapped the guts around her cock and began to masturbate guiltily with them. It was just too good! Like reading a book, or finishing a checklist!

Looking at the remains of two of her best friends, she pondered who to go to next...this was their mane group, save Spike of course...and she thought he might be more interested, and useful, in helping. That, and she'd raised him...she'd rather use a different dragon if she decided to do them at all-there was enough on anatomy for them, surely.

More unicorns, of course! Repeat experiments, more stress testing in different ways? Her mentor, her sister... her breathing quickened with anxiety, guilt and lust. Could she do it? Better yet...would Celestia LET her? So little was known about alicorns! She got excited, mounting a hole in AJ's side and fucking it furiously. Oh Celestia yes, let the goddess be willing like Pinkie! Her last moments, so erotic! So romantic, just for science and Twilight! Just for-oops. She'd gone off, bloating a lung. She pulled out, starting to clean up.

She suddenly grinned, remembering that Pinkie's siblings were coming tomorrow-she could, of course, have called it all off...but how else would she get Maud there without setting off Maud Sense? Like Pinkie, a marvel in her own right...yes... A royal invite to a party...why would they question it when their sister was the royal party planner for Twilight? Big Mac liked Marble, didn't he? Maybe he'd like to show up too...