From the introduction:
Five years ago, a glowing asteroid flew close to the earth, bathing the planet in unknown radiation. For most people this radiation had no effect except for turning the sky a pleasant shade of purple for ten minutes. Little did they know that others, less than one in a million people, had their lives altered forever.
The radiation changed those affected in weird and unpredictable ways. For many, their bodies became much stronger, tougher and greater than they were before. Some developed amazing powers like the ability to shoot lasers from their hands or the power to move objects with their minds. Others became super-geniuses, creating new breakthroughs in science with just an afternoon’s work. Overnight, a new generation of super-humanity was created.
You are one of these Super-Humans. On the day of the Purple Sky, you were at home, passionately rubbing your favorite vibrator against your pussy. At the moment of your climax, a purple glow emanated from your body. Muscles formed and bulged in seconds. Your breasts grew before your eyes. Unwanted weight vanished from your body. You floated in the air, still shuddering from your climax. In a moment of panic, you broke your vibrator with your new super-strength.