Jake decided to hold back on his desire for pranks and let 'Natalie' have her turn, even if she didn't know Jake had already taken his. Besides, what was life without a few surprises?
"Sure thing, you can give it a shot. Do what you like." Jake said, handing her the laptop. "Just don't turn either of us into a monster that'll outgrow the house, or something."
Natalie gave a soft, hissing laugh. "You got it!" She set it in her lap, then looked away from Jake awkwardly. "Oh, yeah, er... while I try to work thisss thing, would you mind grabbing me a towel or sssomething? I can't find my ssskirt, and... well, you and I know there's nothing going on between usss, but I don't think your parentsss or mine are gonna buy that I jussst happened to mysssteriously lose my ssskirt during a sssleepover with a guy if they sssee me ssslithering around the houssse in just my ssshirt." She tugged at the tight chest area of her t-shirt, the rest quite loose. "I really need to get a different sssize, next time I'm ssshopping."
Jake who'd been oblivious to her half-nakedness, startled, and glanced down toward her lap, before quickly restraining himself and turning away, blushing hotly. "Right! Yeah, I'll get right on it!"
He rushed upstairs to the top-floor bathroom, quickly pulling a large green towel off the rack. As he walked back down, he realized that he hadn't actually thought about how his parents might react if they happened to see his prank before the hour was up. Did the perception filter make other people think she'd always been that way too, or was it just her? It'd be a risky thing to test. Maybe, if he got them in range, he could somehow use the Cronivac to make them more suggestible for a while, so they'd just think it was all normal anyway.
"Got your towel!" Jake called as he reached the bottom of the steps, before tossing it to Natalie.
"Thanks, you're a lifesssaver!" Natalie caught the towel and hastily wrapped it around her waist, tying the end into a knot to form a makeshift skirt. "And you're jusst in time to try out the changess I made!" She dramatically hit the "enter" key, and Jake suddenly felt his skin turning smooth and dry, hairs seeming to recede.
"Ooh, that feels weird..." Jake felt the back of his hand. "What are you changing me into?"
"Well..." Natalie twiddled her thumbs. "I alwayss felt really alone and different. While you, and my family, and everybody else have all been nice about it, there's nobody elssse out there like me! Even in cartoons, sssnakes, even reptilesss in general, are always the bad guys everyone's happy to sssee get beaten. I just wanna have one friend who'sss like me, even if it's only for an hour!"
"You're making me into a snake?" Jake stammered. He really hadn't expected Natalie to suddenly remember a portion of her life that different from Nathan's.
"What? Oh, no no! I'd have to be an absolute jerk to get rid of a pair of limbs you've been used to having all your life!"
"Right," Jake said, nervously scratching the back of his head, feeling his hair vanishing already, "What kinda dick would do something like that?"
"I'm just turning you into an anthro..."