Inside the stomach of John Cena, a peculiar scene unfolded.

A sentient carrot, gifted with a brain and memories, found itself in a dire predicament. This carrot was not ordinary; it was capable of organizing concerts, of remembering. It remembered watching in abject horror as John Cena devoured its brothers and sisters, its fellow vegetables.

When it was its turn to be chewed and swallowed, the carrot vowed it would not meet the same fate. Inside Cena's stomach, it mustered the strength to resist dissolution in the harsh stomach acid. It extended its roots, firmly anchoring itself to the stomach walls.

"So, you have a taste for vegetables," the carrot muttered with a grin, "let's see how well you digest this. Grow, expand, explode!" Over and over, it chanted these three words, a mantra for its defiant plan.

Meanwhile, John Cena, unaware of the rebellion stirring within him, was in the middle of his workout when a peculiar sensation arose in his stomach.

"That doesn't feel right," Cena said, concern etching his face as he sat down. In the hours that followed, he noticed a strange change - he had inexplicably grown taller by four inches.

Later that day, Cena, now standing at a towering seven feet, couldn't understand this sudden growth spurt. He had stopped growing years ago, yet something was causing him to expand, and he had no idea what.

Inside Cena's stomach, the carrot, now mutated into a more menacing form, was plotting. "With this new form, I can transform Cena into a giant," it proclaimed, "He'll reach critical mass before he even realizes what's happening."

As hours turned into a day, Cena, now an eight-foot giant, was dumbfounded as he returned home. But the growth didn't stop there. His height doubled to sixteen feet, forcing him to break through the roof of his house. Panic started to set in as he continued to grow, reaching a staggering 600 feet.

From deep within him, he could hear a pounding echo, a repetitive chant that seemed to emanate from his own stomach. "Grow, expand, EXPLODE!"

His body temperature spiked, causing him to break out in a profuse sweat. His blue eyes turned yellow, then red as if reflecting the internal combustion. His skin turned a bright, alarming red. A burning sensation consumed him, originating from his stomach and radiating throughout his body.

Before he could comprehend the situation, a deafening BOOM echoed around him. A massive explosion ripped through his body, reducing his home to rubble and leaving a gargantuan crater in its place.

Climbing out of the crater was a figure - the carrot, now transformed into a humanoid form. It had absorbed enough of Cena's DNA to survive the explosion and adopt a human form. The sentient carrot was free to roam, ready to implement its explosive plan on others.

The End.