[[ I thought my other entry was too quick to a full change, not enough mental changes! Here we go again... ]]
"Ally!" Kyle called out sharply. She jerked her head out of the toilet immediately, turning to look at her brother where he stood in the bathroom doorway. Droplets clung to her chin where some soft fuzz had sprouted, and Kyle was further shocked to see that her mouth and nose had pushed out slightly into the beginning of a short muzzle.
Wiping her mouth with the back of her hand, Ally sat back on her knees next to the porcelain bowl. "Sorry bro, did you need some water too?" she asked, making it very apparent that she now thought of drinking from the toilet to be completely normal.
Kyle felt curiosity replace his initial shock, and only stuttered a bit as he responded. "Uhh, n-no, I mean, no, thanks Ally, I had a glass in the kitchen."
"I don't know why you'd get a glass dirty when there's perfectly good water just sitting in here whenever you want it." she said dismissively, getting to her feet and sliding past him to head for the living room. He followed, wondering what another dose of her trigger words would do to her. As she headed for the sofa, looking like she was just going to sit down and watch some TV, Kyle decided to just go for it.
"Well if you're such a Good Girl, instead of lazing around watching television, why don't we ... go for a walk?" Ally had frozen in place just as her butt hit the couch cushions at the sound of the trigger word from her hypnosis. As her brother finished speaking, her somewhat-doggish face lit up with joy and her tongue lolled out as her mouth split in a canine grin. She even bounced in place and clapped her hands, evidently overjoyed at the prospect of walk, something she would have rolled her eyes at only hours ago.
Bounding to her feet, she rushed over to Kyle. "OH can we?! Really? YES! Let's go let's go let's GO!" Ally was quivering with excitement, circling her brother as he walked slowly towards the front door. "Can we go down the street to the park? I'd love to run at the park. OH! Can you bring something, like, a ball or something? We could toss it around and chase it and RUN!"
"Yes, yes, okay, just calm down." Kyle was struggling to get his shoes on with his sister's bouncing all around, nudging him and ... did she just lick his cheek?! "Alright Ally, now, can you just... Ally, SIT!" she immediately sank to the floor in a crouch, her butt still quivering as she panted in anticipation. As he looked closer, Kyle realized that something seemed to be squirming in her shorts at the base of her spine, and he could see long, wispy hairs pushing out between the waistband and the bottom of her t-shirt. Right before his eyes a new appendage pushed free, wagging in larger and larger strokes as it grew to about two feet long from the base of his sister's spine. Long brown fur covered the new tail, matching Ally's dark caramel-brown hair.
In comparing the fur on her tail to her hair, Kyle noticed something flopping on the side of her head; it seemed her ears had grown out into two furred peaks, folded over and blending with her brown hair to be almost unnoticeable. They perked and twitched with her excitement though, and combined with her other changes, Ally definitely no longer looked quite human. He wasn't sure how they would take a walk without anyone noticing his sister's new doggish-characteristics.