Sally feels it before Gwyn notices... her clothes are starting to get tight all over by the time the water current stopped. He tights started ripping and she felt her top start to tighten on her arms and her bust as her midsection began to show. Slowly she stumbled to her feet and saw the shocked look on Gwyn's face, who now didn't seem as tall as she did a minute ago. Sally's top started ripping at the sleeves and her bra snapped underneath it as she grew. She let a moan out as she grew steadily, noticing her changing perspective.
"Fuck!" Gwyn whispered to herself, cursing her stupidity as she gazed at her enemy swelling larger and larger before her very eyes. Sally meanwhile began to enjoy the sensation as the diminishing fabric rubbed along her body and was put under immense pressure from the inside.
Gwyn tried fumbling with the controls to try and set things right, however Sally noticed this. "Oh no you dont!" said the growing woman.
Sally lunged forward, bursting out of more clothing, leaving her nude on top and wearing nothing but a ruined pair of tights covering her thighs and knee's. At 8 feet tall, she was still smaller than Gwyn but was catching up. Gwyn pushed Sally, but was comparatively weaker than before, leaving Sally able to withstand the force, and push back. This caught Gwyn off guard, however the 9 and a half foot bombshell was able to keep her footing.
"Give me that gun, you slut!" Sally shouted, now starting to slow in growing, currently at 9 feet tall.
"Fuck you!" Gwyn retorts, trying with all her might to push Sally away. Gwyn was slightly curvier, so her increased weight helped, however Sally was fitter. Sally finally stopped growing, only a few inches taller than Gwyn. Both of the Amazons grabbed the gun, and tried to snatch it from the other. With a shove, Sally pushed Gwyn over who toppled onto a table, smashing the wooden furniture to smithereens. Still holding onto the gun, however, Sally fell on top of Gwyn also. They continued to push, shove, punch, and kick as each woman tried to claim control of the gun, making a mess of the living room in the process.
Without warning, the gun erupted a huge fountain of water, dousing both women in a large amount of water, catching them both off guard and sending the gun flying into a corner of the room. Both women screamed and fell backwards in shock, and suddenly, there was silence.
"What the hell did you do?" Gwyn asked.
"You must have done it, that must have been a group shot or something!" Sally responds, beginning to feel another unusual feeling.
This feeling also affects Gwyn who by and large ignores it, instead choosing to continue her fighting with Sally. "As soon as I find that gun, I'm going to shrink you so small, you'll have to look UP to my little toes!"
"Fuck you!" Sally answers. "You're going to have to kiss my ass when I shrink you to the size of an ant."
The two giants continue to fight, now wearing only their pants, soon to be aware of the vast change going on in their bodies.