Amanda watched the other three walk down the hall with a twinge of jealousy. It was nice being the biggest and strongest. She did love that her friends were huge masses of femenine power now, but she wanted to be the biggest, most massive, of the group. She thought for a half-second more before dipping back into the bathroom. Once there she pulled out the gun and checked the settings. It showed the muscle still dialed in on 65% and height at 15%.

"What the hell," she thought as she spun the muscle dial to 90% and height to 25%. She inhaled deeply before turning the gun on herself and squeezing the trigger. Almost immediately she felt her body pulse and shift followed by the strange queasy feeling of reality morphing around her, almost as if to accomodate her newfound strength. She felt her body surging in all directions. Her muscles swelled, thickened, became stronger and her head inched closer to the ceiling.

When she felt the energy subside, she glanced in the mirror to witness her herculean girth. What she saw took her breath away. She stood almost a head taller than she had previously and her musculature was now insane. She was nearly 50% larger than the other girls now and knew she would dwarf anything they could do in the gym. She saw that she was wearing a bikini bottom and turning she noticed that her glutes completely swallowed up the rear of the strap. Her massive halter top tried vainly to contain her muscular form and stretched taut across her heaving bosom.

Looking in her bag she saw an old "Muscular Development" from a year ago featuring her. The caption read, "Massive Teen benches 2000 lbs!" She couldn't help but smile until she heard the first class bell ring.

She shrugged to herself as she headed out the door and sauntered down the hall towards class. One freshman boy madly scampering to class ran smack into her as he rounded a corner. He bounced off like he'd run into a brick wall. In fact, he ran into something much stronger. Her bosom jiggled as his head collided with it, and she reached out and grabbed him with one thick ultra-powerful arm. She smiled down at the shaken student.

"Bobby, you better watch where you are going. You almost knocked yourself out."

He smiled up at her shaking the cobwebs from his head. "Holy shit... Amanda... I'm sorry. I didn't see you there."

She giggled, "Master of the obvious as always."

She let him go once she was sure he could stand and then turned to go into class, feeling his eyes watching her back and glutes shift and move with each step. Smiling she turned in the knob and walked into class.

As she stepped through the door she heard the teacher speak, "Nice of you to join us Amanda."

"Sorry Mr. Davidson, I got carried away with my morning workout."

"Nevertheless class starts at nine. Take your seat please."

"Yes Mr. Davidson. Hey, when is the school going to get those four hundred to five hundred pound dumbells I asked for? It's a little hard balancing an olympic bar in one hand."

"This is physics class Amanda, not gym. Ask Coach Daily. Now please sit, you've disrupted class enough already."

Throughout class she absentmindely paid attention to the lecture on gravity and how it relates to mass. What was really occupying her mind was the last 10% of the muscle dial on her gun. She played with it in her bag and thought she felt something on it she hadn't noticed before.

After class she quickly dipped back into the bathroom as everyone moved to accomodate her girth, clearing a path before she got to them. After all she had 150 pounds on the largest other student in the school and hers was all muscle.

Once she was in the bathroom she maneuvered into a stall and took the gun out examining it carefully. What she found was: