Hot Swap - Part 1

“Hey, Jim. You ready?” Jim’s sister, Cassie, knocked on his bedroom door.

“Ready as I’ll ever be,” Jim giggled.

A couple days ago, Jim had been turned into a clone of his sister by their dad’s experimental machine. The plan was that he was going to be turned back into his real self the next day, after their dad had had enough time to run some tests.

But Jim and Cassie, being mischievous preteens, had other plans. They had agreed to meet up just before and secretly switch rooms and clothes. That way, when it came time to transform back, it wouldn’t be Jim who was transforming, but Cassie.

Their eyes met for a fleeting moment, filled with apprehension and excitement. Without speaking, they both understood what needed to be done. With trembling hands, they started to shed their clothes, preparing to step into each other's lives. It was a risky plan, but the thrill of impersonating another person was too alluring to resist.

Cassie slipped into Jim's clothes, feeling the fabric hang loose around her smaller frame.

Jim's hand trembled as he reached for Cassie's underwear. He couldn't shake off the intense blush that spread across his cheeks. The thought made him squirm with discomfort, but he knew it was necessary for their prank to work. As he slipped on her lacy panties, he couldn't help but feel a stir of unwanted arousal at the soft fabric against his skin. And when he fastened her bra around his chest, the snug fit and delicate lace only added to his unease. He had never felt so girly in his life.

Cassie tossed him the rest of the girly outfit she had been wearing just moments before. 

Jim inhaled deeply, allowing the smooth, swishy fabric of the skirt to cascade over his legs. 

He eagerly pulled up the top, drinking in the way it hugged his body and accentuated his curves, just like it did on his sister. It was as if he had finally claimed her body for himself, and he relished in the thought.

As he caught a glimpse of himself in the mirror, a wave of shock and disbelief washed over him. He saw his sister staring back at him - her long brown hair cascading down her back, her light blue eyes wide with a mix of fear and excitement.

With a deep breath, Cassie patted her brother on the shoulder, giving him a reassuring smile. "You've got this, Jim. Just act natural," she whispered.

Jim nodded, trying to mimic his sister's confident demeanor as they made their way downstairs to where their dad awaited them in his laboratory. The machine hummed softly, its lights flickering in anticipation.

Their dad turned to face them, a proud smile on his face. "Are we ready for the transformation?" he asked.

Cassie and Jim exchanged a quick glance before nodding in unison. It was time to see if their plan would work.