Donkey Dong

Story by blue_mystery_wolf on SoFurry

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#88 of 2021 Stories

A trick horribly backfires.

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"So, where is Eris?" An impatient kitsune asked. She felt as if they had been waiting forever for their friend to come join them. They had plans tonight! Why would it take Eris this long to get ready? She tapped her paw on the carpeted floor with her arms wrapped over her chest.

"She said she had to get something special to wear for the occasion." A feline anthro replied with a smile. She wore a large pink robe that covered most of her body. "But I bet you'll love what she shows up as! Just don't get TOO shocked, alright Nerissa?"

Before Nerissa could agree to those terms, a creature in black jumped out wearing a hocky mask and dual wielding two machetes. While they didn't speak a word, they raised the blades high in the air within striking distance of Nerissa. The creature just appeared out of nowhere inside the house, right behind the sofa that the vulpine herm anthro sat on!

Nerissa's heart practically jumped out from her chest! A surge of magic rushed through her excited body, and unable to stop herself, she fired a bolt of blue energy at the attacker. She quickly jumped back and raised her hands in the air, fingers slightly curled and claws out. She bared her teeth and scowled. "What the hell?"

The massive magical blast sent the attacker flying against the wall. The attacker hit the white wall with a heavy thud before falling down to the floor. A painting of a donkey fell down and crashed atop them, forcing their head through the painting, specifically the part of the painting where the donkey's ass was. As their head tore through the painting, the hockey mask fell off and revealed the shark anthro that was Eris. "Ooowww! You're rough!"

"I'm rough?" Nerissa's pupils blazed with rage. "I'm the rough one? You're the one that came at me with machetes!" She slowly stepped forward and put her arms down, though her look of anger did not fade. "God! You should just be glad I didn't use a damn magic spell that offs you. I did a transformation instead." She crossed her arms with a huff.

"I did warn you that was a bit of a severe prank, Eris." Callie added. "You should have done the 'boo' shout!"

Eris raised up her hands. "They are RUBBER machetes!" However, the machetes fell from her hands as her fingertips blackened and shrank. Her hands grew hard and round. "Hey, what kind of spell did you use?" Any attempt to flex her fingers was in vain. She was only able to watch with a growing look of fear on her face as her hands looked more and more like that of hooves.

"I don't know. I panicked." Nerissa scoffed. Her look of hatred remained. "Some kind of animal spell, I think? We'll find out once it finishes."

Eris pulled the painting off her head and kept looking at her blackened hands, now little more than useless hooves that she couldn't bend or flex at all. They were used for clopping around and little else. She could feel the same changes happening to her pawed feet. A quick look down confirmed her changes. "HEEEEAWW!" She shouted, and then quickly covered her lips. "Gah! Undo this now! You know it's me! I'm not an assailant! It was a joke!"

"I can't undo transformation magic once it's beginning to happen." Nerissa's tone changed from that of anger, to casual. She smirked at Eris's predicament. "Besides, that's what you got for pulling a nasty prank like that. Becoming a donkey will do a world of good for you. Here, let me help. I can't change your body, but I can do this." She cast another spell.

Eris's clothes suddenly burst from her body and revealed her tits, cock, and long shark tail. Well, her tail had always been revealed, but now moreso. "Yipe! Hey! You can't stop my transformation, but you can stop that?" She heard a loud crack behind her and, with a look of surprise to frightened, she began to wobble. "H-hey!" She fell forward onto her front hooves with a clop. She cocked her head behind her and saw her ass high in the air. She was forced to be a quadruped, yet her arms hadn't increased in length.

Callie stood back as she watched Eris transform. She turned to Nerissa, and then back to Eris. "Come on, Nerissa. Is there really no way to stop her transformation? Look at her! You could have at least given her something to cover her shame." It was hard for the cat to hide her blush at the sight of the cock, just barely visible beyond Eris's thigh. Even if it wasn't for her cock, her balls and ass were very much out in the open.

"It's too dangerous." Nerissa replied, acting more casual. "I don't know how much of a donkey I made her, but she'll become more of a donkey for sure. Maybe she'll become totally feral, or maybe she'll just get a big donkey dick. I'm not sure."

"A donkey deheheheck?" Eris stepped back nervously. Her ears, which were now much bigger thanks to her transformation, lowered in fear. She shivered as her cock pulsed and throbbed, growing with every beat of her heart. "Ahn f-fucck. I need... I need a Jenny! I need a Jenny to fuck!" She froze just after she spoke that sentence and shook her head. "Get out of my head! Nerissa!" Her cock grew bigger and bigger, easily surpassing a foot in length, and still growing as the head flattened, a sheathe developed, and it took on the brown and pink colors of a donkey shaft.

"Hey, I just used a spell to transform your body, NOT your mind." Nerissa shrugged. "But I can't imagine you transforming much more than that. Well. Maybe." With a smirk back on her face, she turned to Callie. "Did you say you need a Jenny? I might be able to arrange that, if you ask nicely."

Eris opened her mouth to speak, but she let out a bray identical to that of a donkey. She kicked her rear legs in the air behind her, and then her front legs forward. Her muzzle stretched and reshaped while her teeth grew much bigger inside of her changing jaw. She feared how much of a donkey she was going to become! She lacked the barrel of one, but she had the cock and balls of one, she was getting the hooves of one, the face and ears of one, and even her tail wasn't spared from transforming.

"Are you really going to get her a Jenny?" Callie stepped back and put one hand just underneath her lips while she continued to watch Eris change. Her transformation seemed too slow, but if Nerissa wasn't going to stop this, then there was little she could do herself to make Nerissa stop her transformation. "You can just... once the transformation finishes, you can change her back, can't you?" She swore she had asked that before, but what else could she do? She was a spectator to a horrifying change taking place in front of her eyes.

"Well, she wants someone to mate with. I'm not getting an actual Jenny, that would be a little too much. Imagine if she impregnated a donkey! Oh that would be humiliating on so many levels to point to a female donkey and go 'I knocked her up.', but I take it you want to help her? Maybe you can." Nerissa grinned and, without any warning, cast a spell on Callie, a very similar spell that she used on Eris. "If we're going to have a donkey dilemma, why not have a second one to help take care of her problems?"

Callie was unable to see the magic, but the tingling that rushed through her body told her all she needed to know. She stepped back, but stumbled onto the ground, letting out a shocking "HEEAWW?" While a cock slowly grew between her legs. "W-wait! I didn't mean that!" Unlike Eris, her shaft was growing into place much faster, as was the arousal flooding her mind. Her senses picked up the scent of donkey musk, and she knew it was coming from the excited Eris.

Eris's transformation had, for better or worse, slowed to nothing. She was a mixture of shark, and donkey. Her breast dangled beneath her while her once thick shark tail had slimmed down to nothing but that of a gray donkey tail. While her torso had her normal shark hide, complete with fins on her legs, her hands and feet had been reduced to nothing but donkey hooves. Her ass propped up in the air, showing her anus and her massive furry donkey balls. Her face, once sharp and dangerous, reduced to little more than a humiliating donkey face. She turned to Eris with a look that was part horrified, but also very, very aroused. Her cock pulsed eagerly watching the house cat take on a donkey shape.

Callie's clothing ripped from her body through the power of magic. Like Eris, her hands and feet were hardening, blackening, and changing into hooves. She pulled herself up, only to fall forward in a position almost exactly like that of Eris. The two of them transformed into very similar donkey girls. "Change me-HAW back!" She shouted to Nerissa. Her heart pounded heavily from fear and arousal. It was nearly impossible to stop looking at Eris and her own donkey dick. God, her ass pulsed at the thought of getting that thing inside of her, a feeling she knew wasn't her own, but due to arousal flooding her body.

Nerissa crossed her arms and watched the two with a smile. She stepped back, and cast another spell on Eris. "I'd say this is already the prank of a lifetime, but we can take this a step farther. Come on, Eris. You know what to do."

Eris's eyes grew wide as her testicles swelled and pulsed with a need to orgasm. She saw Callie changing so quickly, but rather than show guilt or sorrow, her eyes fixated on the cat's ass. She had to have it. After a delay that felt far too long for her as she did her best to hold back, she lunged forward on top of Callie. With her front hooves on Callie's rear, she pushed her flared donkey dick into Callie's rear with a loud and happy whinny. Her mind conflicted with thoughts of wanting to stop, but Callie looked too good to resist. She needed that ass, she had to have the ass's ass.

Callie's eyes went just as wide as Eris's. She opened her big donkey mouth and let out a loud "EEAW!" As the cock penetrated her ass. Deep down she wanted to move, but her body enjoyed the cock head in her too much. Her very ass had transformed to accommodate the huge cock that penetrated her rear. A massive pressure grew in her testicles as her body wanted to orgasm from just that feeling. She turned to Nerissa with pleading eyes, only interrupted by the thrust of the donkey atop her.

Eris couldn't stop herself. She thrust more of her cock in, not hesitating to get in as much of her shaft as possible. She knew she had been humiliatingly transformed into a donkey freak of some sort, as had Callie below her, but that wasn't enough to control herself. She'd thrust again and again, feeling the pressure build up in her balls. With a loud donkey bray, she soon orgasmed deep within the ass of the ass she rode upon.

Callie, unable to stop herself, soon orgasmed right after, cumming with the donkey atop her. Feelings of pleasure and arousal flooded her mind, unable to think about anything else but sex.

Nerissa was almost jealous of the two. Heck, she had thought briefly about getting a cock herself and joining in on the fun! But, perhaps next time. She'd fix the two women she transformed, probably. For the time being though, she'd keep them as donkeys just a bit longer, if only to help her move some things around, and maybe just a bit more sex.