An erotic weight gain fantasy where a man and a woman compete on how much weight they can gain during a year. The man ends up buying a black market supplement that causes his weight to spiral out of control. His body becomes increasingly feminine in fat distribution with large breasts and huge legs and hips.

Chapter 2: Building Tension

The sun had barely risen when John found himself standing in front of his bathroom mirror, his reflection staring back at him with a mixture of awe and disbelief. The man who had once been lean and muscular was now a stranger to himself, his body transformed by the mysterious supplement he had been taking for weeks. His once flat stomach was now a soft mound of flesh, his hips wider and more rounded, and his breasts... his breasts were full and heavy, the nipples dark and erect beneath the thin fabric of his t-shirt.

He reached up, cupping one of them in his hand, feeling the weight of it, the softness. He had never thought he would enjoy this sensation, this feeling of being so soft, so feminine.

But as he stood before the mirror, his hand cupping his breast, he felt a strange, foreign sense of pleasure. His mind drifted back to the conversations he had shared with Mia, the promises of exploration and indulgence. With a hesitant smile, he reached for his phone and snapped a picture of his reflection, capturing the transformation that had taken him by surprise. Within seconds, he had sent it to Mia, his heart pounding with a mix of trepidation and anticipation. He waited, his breath caught in his throat, as he stared at the screen, willing a response to appear.

The wait was agonizing, but finally, his phone vibrated in his hand. Mia's response was not what he had expected.

Her words sent a jolt of shock and arousal through him, a stark contrast to the calm, collected woman he had come to know. "Fuck, you're hot," she had replied, her message punctuated with a series of fire emojis. John stared at the screen, his heart pounding in his chest. He had promised himself that he would explore this new world, that he would embrace his new body and his new desires. But seeing those words from Mia, hearing her appreciation and admiration, sent a wave of heat through him that he couldn't ignore.

He looked back at his reflection, his hand still cupped around his breast, the softness of it a stark contrast to the hard planes of his muscular past. He couldn't deny the thrill that coursed through him at Mia's words, the way his body responded to the sight of his own curves.