Joanna groaned. She wasn't sure quite what had happened, but she knew it was unpleasant, and she felt like she'd just suffered a hangover. She slowly stood upright with little trouble with his left side feeling numb. "Geez... what the hell was that crap?" she muttered.
"You tell me," said the old woman, still smiling darkly.
"Hey... I can't feel my right side!" said a voice next to her. Joanna looked over. The other head was still on her right shoulder. "Hey, nothing changed!" she said.
"Did it, now?" asked the old woman. "I can't move my left arm and leg!" cried her right head. "What did you do to me!?"
"I can move them," said left Joanna, using her right arm to feel about their body in a test. Both soon had a shared sensation when the hand moved to the middle of their belly and it was going down. "Hey, stop that!" cried the right twin, and grabbed right arm with her left hand. "Hey!" cried the left twin. "I... you can move you side! That's not fair!" Both Joannas stopped what they're doing & glanced at each other.
"You control of the left," said the right twin. "And you have right side," said her left twin. "Oh, this is just wonderful."
"It's fair," said the old woman. "At least now you're not fighting."
"That's not very funny," said both Joannas.