She is rebellious

"What have you done to me!"

A logical reaction. You expected this.

"I have combined you with the essence of an animal." You casually explain to her.

"What ... why would you do that?"

You paced around the table, explaining your goals to her.

"The world has very few creatures in it, my dear. Every day, many species go extinct, but none are added to it. This is my way or repairing that error. With you, I have given nature a new species. One that is based on the human, the most successful species to date, and I have improved on it."

Your victim was shocked.

"You ... improved me?"

"Yes! With this new body you have enhances speed, greater reflexes, improved healing and regeneration. You are better then you have ever been before."

You had thought she would rejoice, but instead she started ... moping?

She turned her head away and complained. "I never asked you to improve me."

"I am sorry, my dear. But I needed someone to use my experiment on. If it hadn't been you, then it would have been someone else."

"Well, you're done now, so let me go?"

"I am sorry, my dear. But I am afraid society is not ready to accept you yet."

"Why not?"

"There are simply too few of you at this point."

"Then change me back."

You shook your head. "The transformation is irreversible. You will be stuck in this form."

The girl realized you were speaking the truth. Her strength visibly improved.

"Well, I'll find a way to do it then."

You raised your eyes in surprise.

"You'll find a way? How?"

"I don't know. Some magic stuff probably."

You were actually amused by her rebellious nature.

"So ... am I going to remain strapped to this table then?"

"No, you can walk around if you like. As long as you don't leave this room, you should be safe."

With a wave of your hands, the straps unfastened themselves. The girl quickly leapt from the table and ran straight to the door of your laboratory, attempting to leave the room you just told her not to leave.

You used your magic and summoned a gust of wind right it front of her. It flung her across the room. When she got up, she went straight back to getting to the forbidden door.

This time you put a barrier in front of the door. At first she tried to defeat it by slamming her fists into it. When that didn't work, she took a chair. When the chair didn't work either, she nonchalantly threw the chair to the side.

"I don't even want to leave anyway." She replied. "I like it much better in here."

Not only was she constantly trying to oppose you, but she was also not even the slightest bit ashamed. Never once did you notice her hiding her breasts or groinal area. She would simply parade across your laboratory completely nude and didn't even care if you stared at her for a lengthy time.

You were happy, your experiment was a huge success. However now, you had a lizard-girl to deal with.