1: Puppy

John typed into the app.

Have Gianna slowly strip naked and become my loyal, obedient pet puppy.

Execute Command.

Gianna suddenly blinked twice. "Command recieved." she said in a blank monotone voice.

She set her coffee on the kitchen counter and blinked back into reality.

"Well?" She demanded as she took off her blouse, revealing a lace blue bra. "Why are you down here? Can't get a girl so you gawk at your stepsister like a creep?"

She removed her jeans, now just in her bra and panties. But those were soon gone. John drank in the sight of her nude form.

"That is it, isn't it?" Gianna said as she got on all fours. "I knew you were a-arf! Arf! Arf!"

She raced over to him, still on all fours, shaking her ass like a tail. Now just a playful little puppy.

Now that John knew his app worked...

1. He 'plays' (has sex) with his new puppy.

2. He goes after his stepmother

3. He goes after his other stepsister

4. Something else