Karen was floating through a tunnel of light. She knew she must be dying. She began to fell something pulling at her, tugging her back to her body which still lay on the laboratory floor. Suddenly, she was back in her body, and she sat up. Her stomach throbbed with pain, yet when she looked, there was no sign of the bullet wound. "How can this be possible?" she wondered out loud. "One minute I'm dying, the next I'm alive, without even a mark on my body." Standing up, she suddenly felt dizzy. Reaching her hand out to the wall to steady herself, she was surprised when her hand smashed a large hole in the concrete wall. Staring at her hand in shock, she noticed her growing longer and thick with muscles. She also noticed her shirt was rising higher, being stretched by her breasts. Karen blinked. Breasts? Sure enough, there were two large mounds on her formerly flat chest, and they were getting bigger and bigger. She also noticed her legs were growing as well; the hole in the wall was at least six inches lower than it had been a few seconds ago. Karen's thoughts turned back to her muscles as the sleeves of her lab coat ripped apart, showing off arms as thick as car tires. She felt a seam appear in her leggings as her thighs grew larger. The seam quickly spread throughout the leggings, which split apart quite fast. A sudden tightness in her shirt indicated that her breasts were threatening to shred the garment much like her arms had burst her sleeves. Her breasts weren't alone in their struggle against Karen's shirt: her shoulders and back were broadening and thickening rapidly. After a few seconds, RIIIPPPP! Karen's lab coat and shirt were left in tatters on her powerful body with breasts, each easily the size of the average television set. This new body was supported by her legs, which had grown remarkably long, increasing her height from 5'8" to 7'10". "Whoa," Karen said, amazed by the sudden transformation. Her voice had changed; it now seemed a little deeper and a lot sexier. As she bent over to try and get a better look at her legs, she felt something swish against the middle of her massive back. "Looks like my hair grew as well," Karen mumbled, pushing her boobs out of the way and seeing legs that were like tree trunks, but were lean and well-toned as well. Then she realized something. "How the heck am I going to get home like this without being noticed?" As if in response to her question, her body shrank back to its original size. Hmm, Karen thought. I wonder... She thought about her transformation, and almost instantly it occurred again. Her breasts and muscles bulged and swelled, her legs lengthened and toned, and her hair spilled down to the middle of her back. "My theory was correct!" Karen said. "The metamorphosis is mentally accessed and activated, as well as its reversal!" (In layman's terms, she can make herself grow and shrink just by thinking about it.) Shrinking back to normal size, she grabbed a coat and calmly walked out of the lab, her mighty brain already coming up with ideas for what she should do with this new power. By the time she reached her home, she had decided that if she had the strength to match her muscles, she would become a superhero (or to be more politically correct, a superheroine). She got out of her car, grew, then placed a hand under the car. Karen smiled as she easily lifted the vehicle over her head. Now she just had to design a costume.
A few days later, Karen stood in front of her bedroom mirror. She was her normal size and was wearing the "costume" she had made. She had wanted her costume to be comfortable, yet sexy, so she made her costume with normal clothing: one of those open midriffs with the ends tied together (I don't know what they're called), a pair of jean cutoffs, and a tight red bikini top underneath the shirt. Karen had chemically treated the clothes so that they would stretch, so they would always fit perfectly. At least, that's what she hoped. Crossing her fingers, she grew. The "costume" stretched, but didn't burst apart. "Yes!" she shouted, pumping her arms in the air. Gazing at herself in the mirror, she noticed things she hadn't seen before: her face, originally slightly round, was now leaner and sharper. She took off her glasses to remove the last bit of nerdiness and noticed she could see perfectly without them. "I don't need glasses anymore," she said happily. "Now at least I won't look like a nerd when I'm out superheroing." Turning around to get a look at her back, saw that her butt was now bigger, curvier, and sexier than before. Of course, the cutoffs, which barely came a centimeter below her gorgeous new ass, took full advantage of it by staying almost skin-tight. After fully examing her new body, Karen felt that something was missing. Looking around the room, she grabbed a small strip of red cloth left over from her costume-making and tied it around her head like a bandana. "There!" she said, gazing at her reflection. "Perfect! Now all I need is a name..." Her thoughts were interrupted by a knock on the door. "Karen, what's going on in there?" It was Joan, Karen's nosy roommate. Before Karen could go back to her normal size, the door opened and Joan walked into the room. Joan looked like your basic blonde bimbo, right down to her 36LL breasts, but she was intelligent enough to fasten her bra straps, which is what really counts, isn't it? "What the hell happened to you?" she asked Karen. "Um, remember that supervitamin I was working on?" Karen said. "Well, it happened like this..."
"Wow," Joan said when Karen finished telling her story. "So you got covered with that supervitamin, and now you can turn into a big, mega babe thingy. Cool." A lightbulb went on in Karen's head. "That's it!" she cried. "That's what?" Joan asked. "My name! From now on, when I'm in this form, call me...Megababe! It's got a nice ring to it," Karen said, smiling proudly. "Oh, by the way," Joan said, "I heard on the news that some superstrong nutcase is attacking the bank." "Sounds like the perfect chance to test myself!" Karen said. As she turned to leave, Joan said, "Wait a minute. Just lemme adjust your costume." She reached over and tore the legs off the cutoffs, making the cutoffs resemble a bikini bottom made out of blue denim. "There you go. Much better," Joan said. "Thanks," Karen said absently, jumping out a window.
Ten minutes later, Megababe landed on the roof of the bank. She had leaped from rooftop to rooftop, an easy task considering the strength she now possessed. From inside the bank came the sound of the criminal's laughter. Megababe recognized the laugh. "Fred," she growled.
Inside the bank, Fred, who had taken the supervitamin and was now calling himself Musclehead, was having the time of his life. "I should have become a supervillain sooner!" he laughed as he forced the bank teller to hand over the money in the next cash register. He had already cleaned out six of them. Suddenly, something crashed through the roof, creating a cloud of dust and debris that blinded him. When the dust cleared, Musclehead saw a bare-footed amazon. The giant woman had flaming red hair flowing halfway down her back, long, powerful-looking legs, an abdomen with a solid eight-pack of abs, and two gigantic breasts jutting out from her chest. "I suggest you put that money back, or I'll have to hurt you," the woman said. "Well, well, well," Musclehead said, "Who are you? And what is your phone number?" "Call me Megababe," was all she said. "Megababe, eh? I'm Musclehead. My, what gigantic breasts you have," Musclehead said, bowing. The bow was a mistake. Megababe kicked up hard, sending Musclehead flying head first into a wall. "Okay," Musclehead said, picking himself up dizzily. "Now I'm mad." He staggered forward. A punch in the chops sent him down again. He got up again and delivered his hardest punch into Megababe's stomach. Megababe didn't even wince, and Musclehead felt like he had broken his hand. Megababe sent a powerful kick to his groin, and it was all over.
As the police dragged away Musclehead's unconscious body, Megababe raced off, moving at an incredible rate of speed. When she returned home, Joan was watching TV. "You're on the news!" she told Karen. "The villain known as Musclehead was captured by a mysterious woman calling herself Megababe. The woman seemed to exhibit superhuman abilities," the reporter on TV said. "Whether she will return or not, we don't know." Joan looked at Karen. "You look bigger than when you left," she said. "What?!" Karen ran to a mirror. Joan was right! If Karen had been big before, now she was truly huge. Her hair now reached down to her voluptuous ass, which had grown to basketball size. Her hips flared out on both sides of her body, which made the growth of her legs all the more impressive. Her legs had lengthened and thickened so that each was twice as thick as her butt. But most impressive of all were her breasts, which had nearly doubled in size, surpassing Joan's 36LLs by a good five cup sizes. "Interesting," Karen said. "It seems that the longer the time I'm in this form, the larger I get. This could be very interesting." She smiled.
The next day, the story of how Megababe had caught Musclehead was in every newspaper in the country. One headline asked, "Who Is Megababe?" "Who is Megababe, indeed?" said the woman reading the paper. "Well, I'll find out, or my name isn't Hypermorph!" As the woman spoke, her breasts grew.