"Hum... Mom ?"
"Yes dear ?" she answered.
"I might have found something that could help you relax a bit." he said showing the coin.
"What is that sweetie ?".
"It's a special coin that can hypnotise people and make them do what you want, so maybe I cou..."
"Look sweetie, and don't really have time for your games, I'm really tired."
"But it's not... just... look !"
Kyle turned around towards Ally.
"Ally ! Be a good girl and come here !"
Ally was about to answer to her dumb little brother, but suddenly the words sunk in and images of a good dog running to her masters when called filled her mind. She went down on all fours and ran up to Kyle, panting in front of him. Her human mind tried to reason with what had just happened. She was a good girl so it was only natural that she would come when called. Maybe she would even get a treat ! Though she didn't really know what kind of treat to expect...
"Ally, be a good girl and sit !" Kyle ordered.
Again, images of well-trained dogs filled Ally's mind and she did as she was ordered, panting even more as her tongue grew longer. She was such a good girl. Surely Kyle was going to reward her.
"Ally, be a good girl and beg!"
Once again she did as she was told and sunk a little deeper in her canine condition. Her tongue was now that of a normal dog, and the begining of a tail was allowing her to show her happiness.
Seeing the changes Kyle thought he should probably do something before she completly ripped her shorts.
"Ally, good girls don't wear clothes !".
Ally suddenly felt very uncomfortable with all those things she was wrapped in and began struggling to take them off. Kyle helped her out of it so that she didn't destroy them. Satisfied with the results he petted the head of her doggy-sister whose nose had begun blackening while her hears were now that of a golden retriever and her tail fully grown.
"Good girl Ally ! Here have a treat !" He said throwing a dog treat at his sister who caught it in her mouth have ate it immediately. Finally a treat ! She was such a good girl !
Kyle noticed she was beginning to extra breasts. Maybe it was time to wrap this up... Though a few more tests couldn't hurt.
"Speak Ally !".
Ally looked at Kyle quite weirdly, confused about what was asked of her.
"Good girl Ally, speak !".
The trigger once again made it's magic. Ally opened her mouth :
"Bark bark bark". Her face grew into a muzzle and fur spread over it.
"You're such a good dog."
The trigger hit Ally with all its might. In a flash her transformed body changed so that in her place stood now a golden retriever bitch, fully grown in her doggy instincts.
Satsified with the results Kyle turned to his mother while petting the head of the now doggy Ally.
"See that mom ? I hypnotised Ally with the coin and it even changed her body. So I thought that maybe..."
His mom was standing still quite shocked, but she quickly came to her senses.
"Yes I see that dear. Would mind letting me have a look at that coin ?"
"Yeah sure." He answered handing over the coin. His mom examinated it for a bit then swung it in front of her son's eyes. Soon enough he was put in a deep trance.
"Thank you sweetie. You are right I am pretty sure this will help me relax, one way or another. You could have been a tad more suspicious when I asked you the coin, but I guess you trusted I would use it righteously. Speaking of righteous..." She said petting the bitch her daughter had become.
"What you did to your sister was very naughty. I think you deserve a little punishment."