Obidiently, still scared for his life, Brendan gave Vipress another spray of pink liquid. The strange chemical drizzled across the snake's glossy scales and seemed to soak into her. In seconds, the sentient animal squirmed in her own coils and raised her head back.
"Yesssss!" She hissed. It was an almost pleasured noise, and caught Brendan off guard. Watching in dumbfounded amazement, the teen gaped - still half stoned - as the viper grew and grew in ecstasy. Her form on the bed was getting longer, thicker, more powerful. Her head was growing longer too, more elegant, and from the look on her face, it felt good to grow like that.
Brendan gulped as she topped out at nearly six sinewy feet long, stretching out in length on his bed and looking herself over.
"It... feelssss...." It seemed like the scales under her eyes blushed suddenly. Brendan blushed too, *smelling* the snake's arousal. A wet leathery scent.
Brendan blushed. He knew that when something felt that good, it had to be worth it. And, he supposed, it was making his new mistress happy. If she was happy she wouldn't eat him, and if she was going to keep getting bigger, that meant keeping her *really* happy. He sprayed her again, this time with a few squeezes from the bottle.
The snake blinked, stiffening up, and watched as Brendan went trigger happy with the spray bottle, soaking her down in the potion. "Oh yessss!" She nodded. "Yessss! More! Make me bigger!"
Brendan smiled at the strangeness of it all and almost laughed with delight as his snake mistress grew even bigger, practically exploding with growth as the pink liquid soaked into her body. Hissing, writhing, Vipress laid back and felt herself getting hornier and hornier as she grew in size and strength.
In seconds she was the girth of a large tree branch, bristling with powerful serpentine muscle, and had gotten to eight feet. The latest dosing of pink mist pushed her further. She was thrashing on the bed in stimulated delight, her belly plates showing and her head arched back. In a few more seconds she was as thick and as solid as a light post and nearly twelve feet long.
"Oh!" She cried. "Oh yesssss! YESSSSS!" Her tailtip curled slightly and she was blushing all over.
Brendan gulped and averted his gaze, but looked up to check on her progress. She was easily over fifteen feet long, and all fifteen feet of her was in orgasm, thrashing and coiling frantically. As it died down, her body became still, and Vipress lay panting on Brendan's bed.
"M-More." She said weakly. "Pleassssssseeee."
"Did you... just...?" Brendan smirked.
"Yessssss." She said contentedly, grinning happily. "I'm sssso big now."
"You're huge." Brendan grinned, somewhat taken with how massive and powerful his snake mistress was. The sexuality of her growth was even more impressive. It was... kind of a turn on.
"Yesss." She flicked her tongue out several times, panting. "I can tassste your ssssscent." She raised her head up and grinned seductively through a longer, bigger snout.
Brendan blushed deeply. "I... like you big."