You and Rainbow lay smothered under Pinkie Pie’s supermassive ass. Her heavy, warm, soft buttcheek covered your entire body. You pondered how exactly you were going to get out of the situation when there came a flash of light, and Pinkie Pie subsequently shrunk back down to normal, along with all the damage being undone. Unfortunately, this had the consequence of everything turning black and white again.

“Awwww! Everything looks boring again!” Pinkie shouted with her hooves high in the air in exasperation. She looked back at her backside laying on top of your lap. “Look at me! I'm back to being a small pony with a bony thin butt!” she protested.

Truth be told, Pinkie’s ass was anything but thin. It was significantly thicker than that of Rainbow Dash's. Then again, she was a giant just a few seconds ago. Your mighty, 35 inches (or so) long cock stood tall and proud as it lay hotdogged between the plump cheeks of her ass. The girth measured somewhere between 6 to 8 inches thick. Your heavy ballsack dangled below, each ball about the size of a coconut, if not even larger.

Nonetheless, it appeared Pinkie Pie was quite upset about this turn of events, tears were falling down her cheeks, her mane was sleek and straight. Her coat was a darker shade of pink. She no longer had a monster of an ass to look at.

Rainbow Dash acted quickly, and positioned herself behind Pinkie Pie and grabbed her ass with her two front hooves. At the same time, you raised your hands up to join alongside Rainbows. Both of your respective appendages sank deeply into the plush softness of Pinkie Pie’s fat, bubbly ass.

A broad smile came upon Pinkie Pie’s face as she made a sound like a dog’s chew toy in happiness. Her mane regained its puffiness, her coat became a brighter shade of pink. This was followed by a surge of growth rocking her form. Rainbow Dash tumbled over as Pinkie Pie’s hyper-inflating ass smacked against her with a loud meaty slap. You hissed in pain when an even larger pony ass was now on top of you. Each cheek of Pinkie Pie’s ass was like that of a beach ball. The mare loomed over you like that of a huge shire horse, but on steroids.

“Wooo! I’m big again!” she boomed.

However, as if the universe hated her, she soon shrunk back down to normal size. Pinkie Pie crossed her hooves and growled angrily at this turn of events. “Grrrr! This is so unfair!”

You were about to comment when you saw your cock shrink down to merely 10 inches, and it became moderately thick, about 3 inches or so, at least when compared to beforehand. “Whatever is going on, I seem to be affected too,” you said, looking on in shock at your vastly reduced manhood.

Pinkie Pie abruptly rolled herself off your lap. Within mere seconds, Rainbow Dash straddled herself over you. Her lovely, soft rump came to push against your cock, hotdogging it between the soft cheeks of her ass. Her soft, spongy feeling hooves came to rest on your shoulders.

Down below, you could feel her marehood convulsing against your cock, lubricating it with her marecum. You stared into her beautiful rosy red eyes, as you raised your right hand up and placed it upon her cheek. The mare blushed profusely from your tender touch, her cheeks lighting up with a lovely pink color.

Slowly, the two of you drew closer and soon came to enter a passionate kiss. Her long and thick equine tongue came into your mouth. Her tongue slowly and gently swirled about within yours, dancing over your teeth. You licked the underside of her larger tongue, swishing back and forth. The two of you moaned in bliss during your tender kissing session.

You lay your hand down to grip her buttocks, your hands landed firmly upon her cutie marks, you dug in by a good few inches before meeting her strong muscles underneath. And then with a firm show of force, you lifted her up and placed her soaking wet sex upon the tip of your manhood. Her soaking wet marehood dripped down upon your cock, lubricating it even further.

You waited a moment for her to give you some sign she was ready. Soon, Rainbow simply gently tapped your right shoulder with her hoof, telling you she was ready. And so, without further ado, you let go of her rump with both hands. Her rump subsequently dropped down upon your lap with a loud meaty slap. Rainbow Dash quickly departed lips with you and craned her neck back to unleash a loud whinny of pure bliss.

The two of you then simply stared into each other's eyes, appreciating this tender moment. Your cock twitched inside her, while her lovely marehood clamped down hard on your cock. However, this romantic moment was somewhat ruined by Pinkie Pie crying from the sight of it. “It’s so beautiful!” she wailed with tears falling down her cheeks.

You felt as if some outside force was influencing the events that transpired here. You strongly suspected it was Princess Cadance. She must have reduced the size of your penis so you could actually have sex with Rainbow Dash. Whatever the case may be, you were happy that your big penis problem was fixed.

The End

Author's Note

Sorry for the short chapter. But I simply wanted to end this story. I had not updated this in a long time. Sorry, if it has a disappointing ending.