"Hurts"

"I can't make it stop"

...Lucy will attempt the PULL action. 

Some of the farther-away chunks of dirt and rocks abruptly become subject to gravity, and the kid makes a relieved sound.

"Thanks"

"You shouldn't be out here, you could freeze to death."

"Better'n killing someone."

"C'mon, I'm sure we can figure something out where nobody dies." She sits down next to him. 

"Can you make it stop hurting"

"I...can try." She can pull, can she...try to wiggle it sideways? Or something?

The kid grunts unhappily and then almost immediately says "Oh thank you that helps. A lot." He unscrunches a bit and reveals a tears- and snot-covered face.

Lucy fishes a packet of tissues out of her coat pocket and offers him one. 

He makes thorough use of it, shoves it in a pocket, and says "I don't know how to stop moving things." He gestures at the handful of rocks still whanging around under the underpass.

...She thinks about it, and tries wiggling his power some more. 

The rocks slow, and wobble, and slow some more, and finally thunk out of the air as the kid grunts in concentration. Several cars take this opportunity to bolt through the underpass, then the rush slows down a bit as drivers who hadn't been staring at the Rock Situation up close get to the front of the queue.

"Thank you. I'm Nathan. Who are you? How did you do that?"

"I'm Lucy. I...think I did that the same way you did what you were doing with those rocks? I got hit by lightning, and then I looked like this, and the internet said I should have superpowers about it but I didn't feel like I could do anything until I ran into someone else with powers."

"So you have powers-fixing powers? Wow. That's way better than what I got. And you're really pretty." Nathan realizes he said that out loud and turns bright red.

She laughs. "Thanks! It was mildly alarming when all I knew was I had gotten hit by lightning and looked different, but since this does not seem to be a novel form of lightning-derived cancer or something I'm warming up to it."

"I'm glad you got something good. Is what you did going to keep working when you leave?"

"...I don't know."

"Okay." He unscrunches the rest of the way, all gangly sixteen-year-old awkwardness. ". . . I know I need to go home but I'm scared I'll hurt someone."

"Where do you live?"

He points. "That way. Not very far."

She worries her lip. "Do you want to...come with us, for a little while? We can call your parents, let them know you're safe, and if the thing I did wears off I can do it again. And then you can go home when you...have better control with your power how it normally is, or if my thing turns out to be permanent."

"That would be so amazingly nice of you!! I hope I can learn to control my powers soon."

"I hope so too! C'mon," she rises to her feet and offers him a hand. "I promise not to be creepy about, you know, being a stranger offering you a ride."

"You're not creepy. I'll try not to be, like, a creepy hitchhiker either." He'll follow her back to the camper.