Master (dog tf)

"Ugh" Kaia moaned, opening the front door. She had had an awful day. She asked out a boy she liked and got rejected in front of the entire school, and the headteacher. She was sure she was the laughing stock of the entire world. She opened the fridge and found a chocolate bar with a logo she wasn't familiar with. The logo seemed to be a brown dog. Either way, she took it out of the fridge and opened the bar.

"Mom?" Kaia yelled out. When she got no response she sighed in relief. Her mum wasn't home yet. Just then her dog Ralf walked in, tail wagging and tongue panting. "Ralf hi!" She put on a higher pitched tone. "Who's a good boy?" She said, bending down to stroke him. As always, he started to jump her leg. Kaia didn't mind usually, but sometimes he would get too eager and sniff at her crotch. He started to do this now.

"Ralf!" She yelled, holding back a moan. "No go to your bed!" Suddenly, his eyes caught the chocolate she had in her hand and he snapped viciously at it. Kaia was fast enough to pull it back.

"Woah Ralf! You know this is human food!" She said, while Ralf began barking madly. "What's wrong with you?" Ralf jumped up and snatched the bar out of Kaia's hand before she could react. "Ralf no!" She yelled as he scoffed most of it down.

To Kaia's amazement and shock, the dog's face became flatter and canines rounding off. He grew in size until he was bigger than her. She froze. What was happening to her precious puppy? Ralf's hair began to fall out, and Ralf started to groan. Then, hid feet flattened out, becoming human feet. He stood up, now completely indistinguishable from a normal human late teen save for his ears and wagging tail.

"W...w...y...how.." Kaia stammered, speechless.

"I tried to warn you. That chocolate is cursed." Ralf replied. "If you're human, it'll make you a dog. If you're a dog though..... human." He explained. "I'm sorry if I scared you mistress."

"Uh.... don't call me mistress....." was all she could respond. She was trying to stomach what her puppy had said. "Wait were you a person? Or always a dog?"

"I was a person before yeah." He replied. His tail was wagging really fast. Kaia felt very awkward having been treating him like a common dog all this time. But she felt even more awkward at the fact he was stark naked. And he was..... erect.....

"Oh.... so..... you saved me?" Ralf nodded. She couldn't help but glance at his member.

"You like what you see?" He said grinning. She blushed.

"What? No that's..... that's gross and..... and bestiality" she protested weakly.

"Well no. I was a man before this." He moved closer to her, wrapping a strong arm around her shoulder. "You know, I enjoyed every second of being your pet Kaia. But I think it's time for some role reversal." He shoved what was left of the bar into her mouth.

"Mmph!" she gasped as she felt herself begin to change. She shrank a little, and her ears moved to the top of her head, flopping over. "What's.... no!" She yelled, as her hair grew longer, realising her fate. "Ralf why would you do this? Bad boy!" She whimpered as she felt a tail protrude from her behind.

"Oh no, you're a bad girl, Kaia." Strangely, this actually turned her on. She felt her tongue elongate and she struggled to keep it in her mouth. She tried to argue back but all that came was a bark.  When she was now only 4'11" and her tail was wagging wildly, the changes stopped.

"Perfect," Ralf remarked, eyeing her up and down. Kaia was holding on to her loose clothing to try cover herself up.

"You....you...." she said, struggling to keep her tongue from flopping out. Then, she blushed. "Oh," she said, realising what her time of the month meant for her now. She was instantly turned on. "Um" she brushed her hair out of her face as some more animal instincts began to take over. "Woof," she said playfully, letting her clothes drop. He was incredibly attractive to her now, and being in heat, she couldn't help acting..... seductive. She drew beside him, kissing the side of his face while thrusting her hips against the side of Ralf's leg. She bit her lip.

"Play with me master." She said, giggling.