A magical transformation.

Troy was out in the forest, leaving Helena alone in his tent when it happened.

She was large enough that her head would reach his hip now, but she felt another growth spurt hit her. At first it felt wonderful, a warm fuzzy sensation as her limbs stretched and her face softened. But then her bones cracked as they were rearranged, stretching her skin to its limit, and Helena yowled in pain before passing out.

Helena began to wake as she heard footsteps approaching. Her whole body was sore, and she could barely get up onto all fours in the middle of the tent.

Everything felt wrong, from her proportions to her eyesight, but before she could shake off her confusion a flap in the wall opened and Troy entered the tent.

"What the - Helena, is that you?" he exclaimed.

"Um... hi?" the young witch asked timidly.

"Hi? What the hell are you doing here? How come you look like that? And why are you naked!?"

"Why am I..." Helena looked down at herself and turned red. "Eeep!" She spun around, grabbing for Troy's discarded nightshirt and throwing it over her head.

When she was more or less covered she turned back to Troy, who had his arms crossed impatiently. "Well?"

Helena looked down at her hands, which where holding the shirt down against her lap. Hold on, hands? Chest? Yes! They may have been stubby-fingered and furry, but she had hands again! She had her whole dang human body back! Her ears twitched in excitement on top of her head.

Ok, so maybe she didn't have her whole body back. But she had human form, and she could talk! Which reminded her that Troy was still waiting for an answer. Overcome with emotion now that she could talk to him, Helena looked up at her love with big, watery eyes. "I was here the whole time. I was your familiar, I was Molly!"

"That's why she's been growing and acting so weird? Helena, we thought you died when we found those magic circles in your chamber!" Troy exclaimed. "There was no trace of you but a pile of ash on the floor."

"No, I wasn't dead. My spirit just got stuck in your cat."

"Why didn't you say anything? Well not say, but you could have communicated somehow!"

"I don't know. I was scared that they'd take me away to be studied or something."

"Wouldn't that be a good thing?" Troy asked. "Didn't you want to be yourself again? How did this even happen?"

"What I want is to be with you! That's why I used this damn spell, not that this is how it was supposed to go. But when I came to in your cat's body, the familiar's bond was already affecting me. Not only was I afraid to do anything that might separate us, I couldn't do anything that might make that happen. And I didn't know how you'd react to me tipping over an ink flask and writing 'It's me, Helena!' on the floor."

Despite himself, Troy had to laugh. "I would have done whatever I can to turn you back, idiot. And that's exactly what I'm going to do now. Help me pack up the tent, we have to go back to school right away."

"No!" Helena jumped up, her borrowed shirt flipping up. Paying no mind to her exposed pussy, she clutched at Troy's arm. "Troy, I love you. Please don't get rid of me!"

[Author's Note: I had a good image of Helena's new form but I can't find it anymore. Enjoy this one instead:]