She is angry

"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 stamina, improved hearing. You are better then you have ever been before."

You had thought she would rejoice, but instead she started yelling.

"You sick fuck! Let me go!" She demanded.

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

"Why the fuck not?"

"Because you are different. And people posses **** prejudice against anyone and everyone who is different, as long as there are few enough. Elves are different then humans, because at least they have enough numbers."

"Then change me back." She said while bearing her fangs.

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 increased.

"You bastard! How could you do this! What?s wrong with you!!!"

"No, you can walk around if you like. As long as you don't leave this room, and choose not to attack me, you should be safe."

With a wave of your hands, the straps unfastened themselves. The girl quickly leapt from the table and assaulted you. You had sort of expected it.

You quickly rose your hand and shot a small bolt of electricity at her. It was too small to actually damage her, but enough to interrupt her attack. When she recovered, she looked at you with rage in her eyes, but didn't attempt to attack again. At least she was smart enough to realize she couldn't defeat you in a fair fight.

Like you warned her, she did not attempt to leave the room. She was probably too ashamed. Ashamed of her half wolf body, as well as ashamed of her nakedness. Even now, while she was circling around you, she tried to hide her breasts and groin.

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