As Sarah was trying to wrap his head around all these new feelings he was having, someone suddenly coughed, as if trying to get someone's attention. Then he heard a woman say "Excuse me. What do you think you're doing?" Then someone slapped Sarah in the arm, this time catching his attention. "Ow," the woman said.
He looked to his left and saw a middle-aged woman in a flower-print dress. She was rubbing her hand and her arm.
"What?" Sarah asked.
The woman looked sternly at him. "How dare you do that. This is a public place. There are children here," she pointed out, by gesturing towards the playground.
Sarah had no idea what she was talking about, until he looked down at himself. He had his hand down his pants! When did that happen? He didn't even remember doing it.
He took his hand out of his pants and looked back up at the woman. Then his eyes went wide.
The woman was confused by his sudden look of shock, then looked down at her arm that she was rubbing. It was no longer her arm! It looked like it belonged to a guy and it was rapidly becoming more and more muscular as she watched.
And within the next minute, the woman had become a teenage jock boy, just like Sarah had earlier.
He looked down at himself in complete shock. "What happened to me?" he asked, now realizing that his voice had changed as well.