A dark shadow loomed over you, the human as you lay upon a pink love heart shaped bed. The source of which came from a large, snowy white alicorn mare. The mare stood at least twelve feet tall. A particularly large aspect of her body was her ludicrously big backside, that looked like two gigantic bloated beach balls. Her rump’s sheer size was the main source of the shadow.
Her marehood glistened with her creamy essence, giving off a powerful whiff of sweet vanilla. Her marecum leaked out of her vagina, flowing through the thick canyon of her rump, until finally dripping down onto your chest.
“Are you ready to feel the power of the sun, puny mortal?” she said sexfully, looking back at you with bedroom eyes.
“Yes, Princess Celestia. I am ready for the sun.” you stated firmly, giving her a Roman Legionary chest pounding salute.
The alicorn mare giggled, giving her fat rump a little jiggle, before descending upon you with an earth shattering kaboom. The supports of the bed beneath you instantly snapped, and the bed came crashing to the floor with a loud bang.
Fortunately, the integrity of your body remained intact, despite the metaphorical anvil of ponybutt that slammed down upon you.
However, the force of the impact of her ass still knocked the wind out of you. Leaving you choking for breath as her massive ass covered your face and much of your body. Only about half your legs and about half of your arms was not covered in Celestia’s huge ass.
The great weight of her ass pressed down on you, the weight was borderline painful. However, the sheer softness and pleasant warmth of her rump mostly drowned that out. Her rump felt like a smooth, warm, and a very-very heavy blanket over you.
Her marehood covered your face, which gave you direct access to her meaty marehood, which was very distracting from the pain. Along with your magically extended cock being flanked by both sides of her rump’s cheeks
You were compelled to raise your arms to grasp her heavenly cheeks, that was so wide that you couldn't even reach all the way around them. Your fingers sank at least a good few inches through her soft fat of her ass, before meeting the hard and firm muscle beneath.
A muffled moan came from you from beneath the mass of her massive butt. She in turn moaned when you began to fondle her ass. Your hands traveled across the wide expanse of her rump. (At least as far as you could reach.) Along the way you affectionately rubbed and squeezed her most beautiful rump.
Hungrily you ate out her plump marehood, which was showering you with her creamy marecum. You drank down her delicious nectar, loving the sounds of Celestia's moans above you.
Celestia made loud horsey sounds as you worshiped her ass. She returned the favor by thrusting her hips back and forth, grinding her rump across your small form.
Your whole body trembled at the incredible softness of Celestia's rump rubbing across your body. It only got even better when Celestia decided to squeeze her cheeks tightly together, which resulted in your cock being sandwiched between the thick canyon of her rump as she moved back and forth against you.
Alas, your lungs started to ache from lack of oxygen. Noticing your distress, the mare raised her rump a few inches for a brief moment.
You took in a deep breath of air during this brief respite. Once satisfied that you had your breather, she gently sat herself back down on you again.
‘Gently … you didn’t want gentle.’ You wanted to feel the true power of the sun.
You gave the right side of her buttcheek three quick slaps.
“Oh, what’s wrong Anon?” she said in a worried tone.
“Huuhhhummmaaaaaaa!” you said through a mouthful of horse ass.
Celestia then lifted her rump off you an inch so you could speak.
“I want you to dominate me, show me the true power of your almighty butt without weight protection magic.”
“Uhhh… Anon. That would be extremely painful for you. The whole point of weight protection magic is to protect your frail human body from feeling terrible pain, yet still retaining the feeling of a pleasant weight upon you.”
“Come on Celestia, show me the true power of your butt!”
“Anon, if I showed you the true power of my butt you would be little more than a pile of bloody jelly beneath me. So, I will need to cast some protection on you, so you don’t actually die, while at the same time feeling the crushing pain of my ass sitting on you.”
“Okay, so do that then.”
Celestia whimpered. “Anon… you’re asking me to torture you.”
“Oh.. err. I suppose I can live with not ever feeling the true power of your butt upon me.”
“Not necessarily, I could allow Daybreaker to take temporary control of my mind. Butt, be warned. Once Daybreaker is in control, it will be literally hours before I can have control again.”
“So, I can’t back out at any time?”
“Nope. Once Daybreaker is in control. You are at her mercy.”
“Very well then. My body is ready.”
“Are you sure about this Anon? It’s not too late to back out now.”
“No Celestia. I want to feel the true power of your butt!”
Celestia sighed, reluctantly standing herself back onto her four hooves. “Don’t say I didn’t warn you.”
With that Celestia’s horn became encased in a golden glow. The tip of her tail became engulfed in flames.
“It’s still not too late to turn back Anon.” she said softly, though her voice was slightly deeper.
“Keep going.” you simply said.
Celestia sighed, continuing the spell.
The flame slowly traveled up her tail, replacing her former tail. The golden suns of her cutie marks turned a bright red.
“Still not too late.” came her voice, which was far more sinister than normal.
“I want to feel the true power of the sun.”
“You’re going to regret this.” she said in a low voice, before her mane became engulfed in flames.
The alicorn turned to face you with a pair of orange eyes and a mouth filled with a set of razer sharp teeth.
“Well now, you are a brave one I must say.” she said sexfully, giving you bedroom eyes.
You sweated profusely, not only from fear, but the extreme heat that radiated off her.
“I am compelled to kill you right here and now, but my freedom is compromised. Some part of Celestia holds me back even now. Nonetheless, I shall enjoy torturing you and treating you like the pathetic insect you are.”
With that Daybreaker slammed her massive ass down upon you, this was accompanied by a bone cracking sound, and your muffled screams of agony into her massive rump.
Your body was broken; your bones were shattered, and you were a bloody mess underneath her. Unfortunately, through magical means, you still retained your consciousness even with your body turned into smithereens.
Daybreaker lifted her rump up from your gory remains. Then with a flash your body was restored, good as new.
She giggled, before slamming down upon you again, thus breaking your body again.
Daybreaker then proceeded to grind her rump over your ruined body, the heavy mass of her body rubbing across your form turned your bones into dust.
Pain … crushing … terrible pain. You screamed, despite not having a mouth anymore.
‘The true power of the sun is too painful. I’m an idiot, I should've listened to Celestia.’ came your thoughts.
The mare lifted her rump off you, and restored your body. You didn’t have much time to enjoy this respite however, before she waved her tail over your body, engulfing it in flames.
“Aaaaaahhhhhhhhh!” you screamed, burning alive.
Her flame burned through your body, melting it and turning it into ash. Even now, you were still alive, even though you were nothing but a pile of ash.
She flashed her horn, restoring your body once again.
“Ple… ple … ple … Please stop. You pleaded.” you said in a low voice, whimpering like a dog. “You’re a beautiful pony. Your butt is even more beautiful than Celestia’s butt.”
Daybreaker’s lip quivered, tears falling down her cheeks. “You really mean that?”
“Yes… you’re beautiful Daybreaker. Your ass is more beautiful than Celestia’s ass.”
Daybreaker smiled, her cutie marks glowing with blinding magic. With that she shot up into the air, doubling in height and her rump bloating becoming twice as large than before.
Daybreaker giggled as you gulped in fear at her now standing at an imposing twenty four feet, her head nearly touching the ceiling.
The mare lowered her flaming tail over you, brushing it across your body. A great heat made contact with your skin, however your body didn’t burst into flames this time. Admittedly, it was painful feeling her flaming tail brush across your bare skin.
You hissed in pain, but this pain was nowhere near as bad as before. Hell, even your cock throbbed, raising to attention for some reason. Daybreaker smiled at the sight of your cock. You shuddered at the sight of her canine teeth.
Her horn glowed bright red, and she began to amplify her body even more. Up and up she loomed, without stop. The ceiling and the walls of the room expanded away to accommodate her growing body.
You were able to see with magical aid that she was now already the size of Equestria, and still growing. Soon enough, she reached the size of the planet she stood on.
Now you were shown a massive red giant star. Daybreaker was tiny in comparison to the larger star. This began to change very quickly as Daybreaker grew and grew in size. Soon enough she became just as large as the red giant. Still not satisfied she kept bloating herself further in size even more until the red giant was little more than a marble by comparison in size.
“Errr Daybreaker, while I do love seeing your giant, growing ass. How am I supposed to fuck it?"
“You shall cum upon our rump when it reaches my desired size.”
Several hours later.
Daybreaker had now reached the size of quite literally the entire omniverse confined into a pocket universe. If she were to step out of this pocket universe she would literally destroy all of existence.
“Big enough now?” you inquired.
“Err, still not big enough. Just give me a few more--” her mane began to lose it’s flame. “Oh no, I grew for too long.”
Celestia had returned, but she was looking at you with narrowed eyes. (magical aid allowed you to see that she was angry with you, since she was bigger than the omniverse.)
“What’s this about Daybreaker’s butt being more beautiful than mine?!” she roared in the Royal Canterlot Voice, which was amplified even further by her immense size. Your ears popped, going completely deaf for a brief moment.
“Errr, I’m sorry.” you whimpered in fear.
END
