Man vs. OP Princess Celestia
You, the human, dressed in a fine black tuxedo stormed through a pair of golden doors, the Royal Guards did nothing to stop you, since they were useless. Upon entering the throne room, you were met with an oversized, pastel horse that was quite literally the size of an african elephant, if not even bigger. Her massive body cast a dark shadow over your insignificant form.
“Princess Celestia!” you shouted. “You’re not so tough! I am a human, therefore I demand you let me rule Equestria, so I can destroy your perfect land with my incompetence!”
“Anon, are you okay?” she said softly, lowering her head to your level, eyeing you with concern.
You growled angrily at her, lashing out with a mighty blow to her face with your right fist. Unfortunately, upon impact your hand gave out a sickening bone cracking sound as it hit her cheek which seemed far harder than even solid steel.
“Aaaahhhhh!” you fell to the ground and screamed in agony over your broken hand.
Thankfully the pain was short lived as your hand became wrapped in a golden glow, and you saw your fingers go back into place.
“Huh?” you looked up to see Celestia’s horn glowing with a golden light.”Hey! I don’t need your healing magic.”
“What’s wrong dear?” she asked in concern.
You jumped to your feet, delivering her another punch to her right cheek. However, this time it was far softer than before, your hands sinking a great deal into her soft flesh. Celestia teared up, upset by this show of violence, but otherwise didn’t feel any pain from the impact.
“Anon … please stop it.” she pleaded.
“NO!” you shouted in defiance, delivering her another mighty blow to her cheek.
“Anon, while you’re not hurting me physically, you are still hurting me emotionally here. Whatever happened to my favorite big ass worshipping little human?”
“I don’t love your bony thin butt anymore!”
Celestia gasped in horror, a hoof coming to her mouth.“Heresy! My butt is the biggest and fattest butt in existence!”
“Come on, cry out in pain!” you shouted, punching her again, but to no avail.
“You physically can't make me do that Anon. My body is basically indestructible to anything I’ve seen in this universe. For example, I can go for a swim in a black hole and survive the heat and pressure of a hypergiant star's core.”
“Oh yeah, you’re not so tough! I am an underpowered human and I shall defeat you overpowered pony!” you shouted.
Princess Celestia rolled her eyes. “Okay, enough of this insanity. Time for the ass treatment.”
With that Celestia turned around, presenting you her massive backside. You delivered a mighty blow to her rump, which caused the fat of her ass to ripple across her cheek as if you threw a stone into a lake. The impact of your hand also caused her cheek to wobble about wildly, resulting in her cheek slapping against the other one with a delightful sound of flesh slapping against flesh.
Celestia flashed her horn, doubling in size. Her already monstrously large rump becoming even more massive.
You were not intimidated in the least by this, choosing instead to hit her right, oak tree trunk like thick leg. She was now so tall you could not reach her rump.
Celestia sighed, before unceremoniously dropping herself on top of you. The throne room shook has her massive backside slammed down upon you. Dust and debris fell from the ceiling, a large crack formed upon the marble floor her ass had hit.
Your world was now a warm and soft, yet dark place. A faint smell of vanilla emitted off her rump. You ignored those wonderful feelings, choosing instead to ... lift her up off you?
There was however no lifting to be had. The incredible weight from her rump alone pressed down hard upon you, the squishy soft fat of her ass folding around you like soft dough.
“Anon, my butt is the heaviest object in existence, there’s no way you can lift me.”
You uttered a muffled growl of defiance, continuing your efforts to lift her rump. However this only resulted in your hands sinking in deeply into the thick layers of soft fat.
“Okay, I’ll make my butt even bigger and heavier for you, just the way you like it.”
With her magical aid you were allowed to see Princess Celestia lighting up her horn with a golden glow. She moaned at the feeling of her magic making her body grow bigger, gaining inches by the second.
You struggled valiantly against her inflating body, as she became bigger and bigger, fatter and fatter, heavier and heavier.
Suddenly, a massive growth surged through Celestia. Her head was now dangerously close to touching the ceiling, as her rump’s cheeks were so wide they were touching the walls, the soft fat of her cheeks depressing deeply against them. The very building you were in began to creak and groan under the pressure of her mighty body.
Nonetheless, you continued your pointless struggle against the impossible.
The throne room faded away, leaving you and her in a blank white empty plain of existence. The empty plane of existence did however seem to have a solid floor of white nothing in which Celestia and her massive ass sat down upon you.
Now with her castle and her world safe from destruction, her growth rate became stronger than ever before. She went supernova, exploding outward in size. In mere seconds she became as big as an entire solar system. This was followed by an even more powerful growth spurt when she became as big as the milky way galaxy, and then… to the size of a universe. Universe size, as evident by her rump cheeks been depressed against this plain's very edge of existence.
"Hmm, you still haven't had an erection. Something is very wrong with you indeed.”
You mumbled something into her ass in answer.
“Do you surrender? Or do I have to fill up the entire omniverse with my butt?”
You uttered a muffled growl of defiance in response.
Princess Celestia sighed, transforming back to her normal size before you. She looked sad and dejected, her ears drooped.
“Hah! I won! I defeated the all mighty butt of Princess Celestia.” you shouted, jumping to your feet.
“Okay, I didn’t want to do this, but I’m breaching your privacy.” she said angrily, lighting up her horn.
With that you felt a warm glow upon your brain.
“Aaaaaahhhhhh!” you protested, waving your arms wildly about and screaming.
“Ah, as I suspected.”
Coming to your senses, you rushed toward Celestia, giving her thick right leg a hug.
“I’m sorry Celestia.” you said, tearing up.
“Shh, my little human.” she said softly, draping a wing over you.“We will have butt fun later, right now I have to have a word with a certain draconequus about messing with my favorite butt monkey.”
End
