Amanda had fully expected to be in complete control of the match from the get go, but much to her surprise Nikki too an early lead. Amanda began pushing back and found that she had to use just about all of her super strength to get Nikki’s hand to stop and change direction. Once she was able to push back to their starting position Nikki and Amanda locked eyes. Suddenly they both knew that the other possessed the strength of armies. Neither knew how the other came to be so strong, but that didn’t matter; the question now was who had more power flowing through their body. Now it was anybody’s game.

Both girls suddenly began pushing with all the strength they could muster. Their elbows began to dig into the metal table leaving deep divots. The crowd around them suddenly realized that both girls were fighting with all their might and they came alive cheering for their favorite. There were calls for both girls coming from every corner of the room.

Amanda, in the middle of fighting, noticed that Nikki was grinning and looking at her own arm. Amanda followed her gaze and was shocked to find that Nikki’s arm was swelling and inflating. After about 15 seconds of growth Nikki’s arm was equal in mass to Amanda’s. Now both girls were sporting 17“ biceps, but Nikki’s growth didn’t stop there. Her arm continued to swell for another 10 seconds or so until it measured nearly 26”. The sleeve of her t-shirt was shrink-wrapped around her expanding shoulder and it began to show signs of ripping. Her gargantuan muscles looked completely out of place on her super model frame which made them appear even bigger. The crowd, having seen Nikki’s arm go from toned to massive were stunned into silence.

Despite her growth spurt, Nikki’s strength didn’t seem to increase all that much, and Amanda was slowly gaining ground. Once Nikki’s arm began to approach the table Amanda’s confidence soared. Two inches from defeat Nikki began breathing heavy and her face turned bright red. She pushed with all of her might, but was only able to delay her loss by a few more seconds.

With an exasperated sigh Amanda slammed Nikki’s arm to the table and released her grip. Both girls sat back gasping for air. Nikki was rubbing her arm and Amanda noticed that it had already shrunk back down to it’s previous size.

“That was amazing,” Amanda said, “Great job.” She held her hand out for Nikki to shake.

Nikki looked from Amanda’s hand to her face then back again. Her own face then contorted into a look of rage and she screamed, “NOOOOOO!!!” Nikki slammed her fist down on the metal table and it split in two. “I’M SUPPOSED TO BE THE STRONGEST, NOT YOU!! HOW DID YOU BEAT ME???”

Nikki stormed past the bench press and grabbed a 100 lb. plate with each hand. “IT’S NOT FAIR!” she yelled as she threw the first plate towards Amanda. Amanda didn’t have much time to react and was only able to get her arms up to protect herself. The plate bounced off her forearms and fell to the ground. This only enraged Nikki further. She took the second plate in both hand and snapped it into two pieces. These she threw to either side of herself. One smashed through a window and continued across the football field and came to rest in the track on the far side. The other embedded itself in the concrete wall that separated the weight room from the locker rooms.

Nikki pointed at Amanda, “YOU MUST HAVE STOLEN THEM!” she said and turned toward the wall. Before Amanda could ask what she had stolen Nikki had punched and kicked a hole in the wall that led straight to the girls’ locker room and disappeared.

Amanda ran after her making sure to grab her backpack (with the gun inside) as she went. When she found Nikki she was at her own locker holding two test tubes of clear liquid.

“Last ones,” Nikki said, “Well, they’re still here, so I don’t know where your body came from, but I don’t really care.”

“Nikki, wait,” Amanda shouted, but it was too late. Nikki swallowed the contents of the two tubes in one quick gulp.

“Wait for what?” Nikki asked.

“What was in those?”

“That was a little formula my father put together for the army. It’s a super soldier formula.”

“How many have you taken before today?”

Nikki laughed, “Only two. One in middle school before I became a world class gymnast and another last year. The last one really worked with my curves since I had gone through puberty. And, they tend to increase strength exponentially, so these next two should really do a number on me. I don’t know how you got to be so strong, but you’ll never be able to follow where I go now.”

Amanda heard a cracking sound and noticed that Nikki was starting to get taller. She guessed the sound must have been Nikki’s bones reshaping into their new taller form. She slowly crept from 5’8“ past 6’. By the time she was done growing taller she stood over Amanda by a good five inches which would have placed her at 6’6’.

”That’s more like it,“ Nikki said looking down at Amanda, ”Now the real fun begins.“

With that she began to inflate. Every muscle in her body exploded in size. Her clothes tore apart and fell to her feet in shreds. Amanda had never seen so much muscle packed onto a single person. Her arms were well over 30 inches around while her legs were at least 40. Her abdominals were chiseled out of solid rock and her chest stuck a foot out beyond her chin. She flexed a most muscular pose at Amanda and growled a ferocious feral snarl. Amanda, scared, took a step back.

”That’s right,“ Nikki said, ”you should make way. I never planed to need this extra step, but I’m glad I took it because I feel gooooood.“ As she purred the last part she released her flex and began to shrink back down. Her muscle was contracting and fitting inside her new 6’6” frame. When she was done shrinking her body looked bigger than it had before the contest earlier, but not by a whole lot. She was a little beyond toned, but not past athletic. Her curves, however, were greatly enhanced. Her breasts had nearly doubled in mass and were nearly the size of basketballs. Her waist was tiny, perhaps only 23“ or so, but her hips flared out greatly to almost 40”. The contrast was so exaggerated she almost looked like a cartoon character, but there she was in the flesh. Her butt was perfectly rounded and large and it sat atop a pair of legs that appeared to go on for miles and miles.

Nikki ran her hands over her new form and walked around strutting a little getting used to her new dimensions. “This will certainly do.”

Then she walked over to Amanda and looked her in the eye, “I just want to make sure you know who’s in charge here. I’ll let this little uprising pass since it ended so very well in my favor, but don’t you ever try anything like it again or I’ll just have to take further steps. Those may have been the last vials I had here, but my father has tons more where that came from. See you around.” As she walked away Nikki gave Amanda a tiny shove that nearly sent her across the entire locker room.

Amanda sat up and opened her backpack. She removed the gun and quickly adjusted the dials and aimed at