he is aggressive

"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 him.

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

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

"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 he would rejoice, but instead he started yelling.

"You sick fuck! Let me go!" He 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, but at least they have enough numbers."

"Then change me back."

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

The man realized you were speaking the truth. His strength visibly increased.

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

"Don't be angry." You sneered at him. "You're not changing the situation with it."

"So then what. Are you going to keep me stuck to this table forever?"

"No, you can walk around if you like." You said. "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 man quickly leapt from the table and assaulted you. You had sort of expected it.

Even to you his speed was unbelievable.

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

Like you warned him, he did not attempt to leave the room. He was probably too ashamed. Ashamed of his half wolf body, as well as ashamed of his nakedness. Even now, while he was circling around you, he tried to hide his groin.

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