Refuse

"No way!" Jake exclaimed.

The doppelgänger shook his head.

"I don't think you understand", he said. "I wasn't asking if you wanted to swap places with me. I was telling you that it was going to happen."

"How are you going to **** me?" Jake scoffed. "You're me. By definition, we're evenly matched."

"In theory", Jake's double said. "But in practice, I have an advantage you don't have — I know magic."

Jake stared, his eyes wide.

"What do you mean?" he asked in shock.

His doppelgänger smiled cruelly. Instead of answering, he raised his hands. A black glow grew around them. Jake couldn't pull his eyes away. When the double was satisfied with the glow, he flicked his hands towards Jake. The blackness streamed towards him, faster than Jake could react. Before he could blink, Jake had absorbed the magic.

At first, Jake thought the magic hadn't worked. He was about to point that out to his doppelgänger when he felt something in his stomach. It felt a little bit like a stomach ache, but not due to physical problems. Jake doubled over, clutching his stomach. He wanted to yell at his double, but couldn't find the strength. After a few minutes, the pain vanished, and Jake straightened out again.

"What was that for?" he asked.

The doppelgänger smiled condescendingly.

"It was magic, of course", he said. "If you want to learn, you can take my place in the mirror world. Otherwise, you're mine to play with."