Substitute Uma Musume - Horse Girl TG

by MisterTwister

Tags: Inanimate, Horse, Caption, Uma Musume: Pretty Derby, Gender bend, Feminization, MTF

DescriptionIf you want to make a suggestion or have an unique idea? Join the Discord Server. Maybe there is a giveaway so don't miss it! Psss the uncensored versions are there as well!Substitute Uma Musume - Horse Girl TG(Commission cap for TheToo)The roar of the crowd hit River like a physical for…

(Commission cap for TheToo) The roar of the crowd hit River like a physical force as he pushed through the crowd into the Tracen Academy Grand Prix stadium. Thousands of fans packed the stands, waving banners and chanting names, but he only had eyes for one racer. Hishi Amazon, the number 7, was his absolute favorite. He clutched his betting slip like a holy relic. Every yen he had brought today was riding on her number. She had never let him down before and today would be no different. The pre-race warm up area was technically off limits to regular fans, but River had learned long ago that if you walked with enough confidence, nobody stopped you. He slipped past a distracted security guard and found himself in a corridor lined with doors, each marked with a racer's name and there she was. Hishi Amazon stood in the hallway, stretching her muscular legs, her long indigo hair cascading down her back like a waterfall. Her horse ears twitched as she noticed him approaching, and those fierce red eyes locked onto him with intensity that made his knees weak. "You lost, fan boy?" "I... I just wanted to..." River swallowed hard. "I wanted to ask you something. What does it take to be as great as you?" Her expression softened slightly, a smirk playing at her lips. "Hah! You wanna know Hishiama's secret?" She placed her hands on her hips proudly. "Simple! Believe in yourself! Train until you drop! And find a trainer who pushes you past your limits! And of course be a uma musume!" "That's... that's really inspiring, actually... sadly I am just man..." "Of course it is! Now get outta here before security finds you and I get in trouble for..." She took a step forward. Her foot caught on a loose tile. Her eyes went wide. "Wha...!" Hishi Amazon fell directly onto River. The impact should have just been painful. It should have been embarrassing. Instead, the moment her body collided with his, something impossible happened. Heat exploded through River's entire being. 'What... what is this... I'm burning... I'm BURNING...' Their bodies didn't separate on impact. They pressed together and kept pressing, flesh meeting flesh in ways that defied physics. River felt Hishi's skin against his own and then THROUGH his own, her warmth seeping into him like water into a sponge. "What the hell?!" Hishi's voice echoed strangely, like it was coming from inside his head. "Kid! What's happening?!" "I don't know I don't know I don't know!" River's chest swelled. He could feel it expanding, pushing outward, soft tissue forming where none had existed before. His shirt grew tight as two mounds inflated beneath the fabric, heavy and warm and impossibly sensitive. His hips cracked and widened with a series of sickening pops. His waist cinched inward. His shoulders narrowed. Every bone in his body was reshaping itself, and the pain mixed with pleasure in ways that made his head spin. 'My... my body... it's changing... I'm becoming...' His hair erupted from his scalp, cascading down past his shoulders in waves of silver and gray. He felt something twitch on top of his head, and when he reached up, his fingers found soft fur. He had horse ears now. Something pushed out from the base of his spine. A tail, long and flowing, swishing behind him with a life of its own. "YOU'RE ABSORBING ME!" Hishi's voice screamed from somewhere deep within him. "STOP IT! STOP!" But she wasn't just being absorbed. She was changing too. River watched through eyes that were rapidly shifting color from brown to gray as Hishi Amazon's body flattened against his... no, HER chest. The uma musume's form lost dimension, becoming thin, becoming fabric. Her indigo hair became silk ribbons. Her tanned skin became smooth white cloth. Her racing uniform merged with her very being until there was no distinction between outfit and girl. Hishi Amazon had become clothes. An elegant racing dress materialized around River's new female body. White fabric with blue accents hugged her new curves. A flowing skirt fell to mid-thigh, decorated with golden embroidery that seemed to shimmer with life. Blue ribbons adorned her waist and chest, tied in perfect bows that felt warm against her skin. 'She's... she's my outfit now. I can feel her. She's wrapped around me.' 'I CAN STILL THINK!' Hishi's voice echoed in her mind, panicked and angry. 'I'M YOUR CLOTHES! I'M YOUR DAMN CLOTHES! WHAT DID YOU DO TO ME?!' 'I didn't DO anything! You fell on me!' 'This is YOUR fault somehow! It has to be!' River... no, she needed a new name now. She looked down at her new body, at the elegant racing dress that was once her favorite uma musume and felt tears prick at her eyes. 'What am I supposed to do now?' Footsteps echoed in the corridor. An official rounded the corner, clipboard in hand. "There you are! We've been looking everywhere for..." He stopped, squinting at her. "Wait, you're not Hishi Amazon." "I... I'm..." "Doesn't matter! You're wearing racing attire, you're an uma musume, and we're short one racer!

Substitute Uma Musume - Horse Girl TG — image 1
Substitute Uma Musume - Horse Girl TG — image 1
Substitute Uma Musume - Horse Girl TG — image 2
Substitute Uma Musume - Horse Girl TG — image 2

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