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               Pinkie Pie Wants A Piggyback                
                        -by Bendy-                         
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                         Piggyback                         
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Piggyback
It was a bright sunny day because of course it was. Ponies like having bright sunny days, they literally had control over the weather and the sun. You, the human, were in Ponyville Park. A lightly forested area just outside town, not to be confused with the Everfree Forest. You simply wore a plain short-sleeved white t-shirt, a pair of bright blue shorts, and a pair of brown sandals.
You were sat on a wooden bench, along a dirt path through the park. Sitting before you upon her rather plump rump was your dear friend, Pinkie Pie. When she stood on all fours, she was about 5.5 feet tall, or 16.5 hands. She was an extra-large pony, in some ways she was basically a horse. But you didn't want to be rude, so you always referred to her as being a pony. An earth pony no less, that is well known to be the biggest and thickest among your average pony.
Her size ratio was somewhere in between that of a full-blown horse and a pony. If you were to stand up, you stood about six feet tall, but she had vastly more mass than you. Pinkie Pie was not particularly out of the ordinary, she was your average-sized pony. When you met the likes of Princess Celestia it was quite a shocker for you, she was on a whole other level.
On the contrary, Pinkie Pie possessed a rather substantially large backside when compared to most ponies, since she loved to inhale vast amounts of candy and other sugary high-fat goodness into herself on a daily basis. In other words, she was thicc. But in all the right places. Somehow, her stomach was well-toned despite everything. And you got to appreciate that massive backside of hers first-hand.
In short, you feel that your bones should be shattered since Pinkie Pie like to hug you really tightly out of nowhere a lot of the time. However, there seemed to be some sort of passive magic protection in place to protect you. You did have first-hand experience of Pinkie Pie bouncing her large rump up and down on your lap during sex. Under normal circumstances, your pelvis should be shattered by the sheer weight of her huge rump.
However, something about the ‘magic of friendship’ or something like that protected a pony’s friend from harm, at least according to Twilight Sparkle. Still, it was quite a painful experience, you could hardly walk after it. It felt as if you did a long weightlifting session at the gym when Pinkie Pie’s massive ass bounced on your lap. And when Princess Celestia was on top of you during sex… You were bedridden for a week in terrible pain, but it was worth it.
So, with all that considered, you were completely flabbergasted by the question Pinkie Pie just asked you.
“Anon, can you give me a piggyback ride?”
“.....” you simply said, looking at her with wide eyes.
“Well, Anony, what are you waiting for? Pinkie Pie wants a piggyback ride from her human friend.”
“Pinkie, I would love to give you a piggyback ride. But I am simply physically unable to achieve such a task.”
The mare lunged forward and jumped onto your lap, making you gasp as the wind was knocked out of you from the sheer weight of her body. Her heavily endowed rump came to sit down on your lap. Your cock began to twitch in your shorts, for the warmth and softness of her massive rump were only guarded by a thin layering of clothing from making contact with your penis.
From this high position, Pinkie Pie towered over you a great deal, she would need to lean her head down to kiss you. Her soft, spongy feeling hooves rested on your shoulders. However, they were heavy and added additional pain from the weight of her body on top of you. On the plus side, the softness of her fur against the bare skin of your arms felt marvellous, for you were only wearing a short-sleeved t-shirt.
“You can do it, Anony, I believe in you.”
“Pinkie Pie, do you mind if I demonstrate as to why that's impossible?”
“Sure, my human friend.”
You reached your arms around Pinkie Pie’s barrel and placed your hands upon her rump around her three balloon cutie marks, your hands sank into the squishy bubbly layers of fat like that of soft pizza dough, before eventually meeting her ironclad muscles deep underneath. Pinkie Pie giggled happily as you held her rump.
“Hehe! Not in public Anony,” she said in embarrassment, her cheeks lighting up with a pink colour.
Without saying a word, you tried to lift her ridiculously heavy rump off your lap. However, all you managed to achieve was basically fondling her ass, and nothing else for the most part. You didn't even manage to lift her an inch off your lap. Pinkie Pie for her part was giggling all the while as you made your futile attempt to lift her huge rump.
“You're quite handsy today, Anony. You want to go back to my home and have fun with me?” she said in the hot breathy voice, looking at you with bedroom eyes.
“Pinkie, don't you realize I am trying to lift your ass?”
“You are? Really?” she said, looking at you with a bewildered look, her head tilting to the side.
“Yeah, and it's impossible. In fact, I believe, my bones should be shattered by now if there wasn't any of this friendship of magic to protect me from you.”
“What are you trying to say?” she said in a low voice, a sad frown coming upon her face. And if you didn’t know any better, she seemed to become a darker shade of pink.
You sighed deeply. “Pinkie, you are too heavy.”
She gasped in horror, a hoof coming to her mouth. “Are you calling me fat?”
“No! You're not fat, Pinkie. I'm just a mere, weak human. I'm not designed to lift ponies.”
“Well then, Mr. Human, it's time for you to work out hard. I need to get Rainbow Dash to give you a fitness routine and a diet to help you get strong, so you can lift your pony friend and give her a piggyback.”
You groaned in annoyance. “That sounds hard. Can’t you just get some pony to cast some fancy-ass magic on me to help me achieve this task?”
“You silly-billy, we tried something like that, remember? You are highly resistant to most forms of magic. Other than penis enlargement spells. You needed it, your penis was too small when we first tried to have sex.”
You growled angrily from that comment from her. “Oh, yeah, right. But having to work out like a machine does not sound fun, Pinkie. I’m sure there might be a more fun way to achieve this task.”
“What if we get ponies to bounce on you with their massive asses during sex until you get strong enough to lift a pony?”
You shuddered in fear. “But my legs? What about my legs?” you pleaded.
“No pain, no gain,” she said, waving her right hoof nonchalantly.
She hopped off you, and then she giggled at the sight of your massive erection with a hoof over her mouth. “Little Anony will like it.”
You sighed deeply. “Fine. If it makes you feel happy, I'm willing to endure the terrible pain,”
Pinkie Pie made a sound like a dog's chew toy in happiness, clapping her two front hooves together.