Andrew pushed open the door to the costume shop, a bell tinkling softly above him. His short blonde hair caught the last rays of the sun as he stepped inside. The shop was filled with a variety of costumes, each more extravagant than the last. He wandered through the aisles, his blue eyes scanning the shelves until something caught his attention. "Hot firefighter?" Andrew read aloud, a grin spreading across his face as he picked up the package.

Andrew removed the costume from its packaging, chuckling at the absurdity of the situation. The pants and suspenders looked far too big for him, but he was intrigued nonetheless. "Well, let's see if this fits," he muttered to himself, slipping into the pants. To his surprise, the fabric seemed to adjust to his frame, and as he donned the jacket, an inexplicable sensation coursed through his body. He felt his muscles ripple and stretch, filling out the outfit until it fit him perfectly.

Andrew stared at his reflection, disbelief etched across his features. He was no longer the 5'7" man who had entered the shop. Now he stood at an impressive 6'5", his frame muscular and powerful. "What the..." Andrew whispered, unable to tear his eyes away from the mirror. He watched as his pecs expanded and his backside rounded into a perfect shape. His underwear transformed into a snug red speedo, accommodating his enhanced physique.

Andrew blinked in confusion, finding himself on stage, a spotlight highlighting his transformation. The noise of the audience reached his ears—a crowd of women cheering eagerly. "Guess it's showtime," he thought, a newfound confidence surging through him.

Andrew began to move, swaying his hips to the rhythm of the music. He shrugged off his jacket, revealing his chiseled chest, and undid one suspender at a time as the crowd roared with approval. "This is unreal," he thought, reveling in the attention and joy of the moment.

Andrew took a bow, a broad smile on his face as he basked in the admiration of the crowd. He had come in search of a costume but had found something much more—a sense of freedom and confidence he had never known before. "I guess I really am a hot firefighter," he said to himself, stepping off the stage with a newfound swagger.