Jenny is a 17 year old student and she was going home to finish off homework and she bumped into Kyle who said
"Hey... I know you have a crush on muscle guys, right?" Kyle grinned, as he sat on the edge of her bed.
"Yeah... So?"
"Imagine what it would be like if you were a muscle-girl!"
"Awww.... Come on!" she laughed. "I'd have to go to the gym and work out for a hundred years!"
Kyle walked up to his sister and kissed her on the forehead.
Suddenly, Jenny crouched as she felt all her muscles stiffen and swell up.
Her calves grew out from the back of her legs, growing to the size of melons! Her quads hardened and thickened fast. She now had the legs of a gymnast! Layers of rock-hard muscle now formed above her knees! Her abs became very well defined as a six-pack formed right above her groin, showing ridges and peaks! Her skinny arms turned into long pythons of round spheres of muscle, which now contained mighty biceps and triceps! Bulging biceps rose up from her arms the moment she flexed them, and massive triceps formed under them as well. Her shoulders widened as well, and great delts and lats formed, making her shoulders seemed wide like those only bodybuilders had! Finally, her pectorals pushed out from behind her breasts, making her chest stand out!
"WOWWW!!" she exclaimed!
Kyle just looked on as he witnessed Jenny transform into a muscle-girl!
Jenny walked up to him, with her broad arms and shoulders hanging off the side of her bulging chest.
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