Samantha turns out to be a terrible runner

She was more unfit than Nate expected; her face was beet-red, and she was openly panting at this point. The running posture was terrible, too. She was leaning forward with her chest pushed out in an effort to move faster. Nate was tempted to call her a Naruto runner, but thought better of it. This made her hips jut out obscenely and gave Nate a great view down her top where he saw the shape of her breasts underneath her sports bra's thin fabric. It made Nate wonder how constrained her tits were...

It wasn't long before Samantha slowed down again, gasping for breath and looking up at Nate as though begging him for mercy. While Nate was using his powers on himself to cause his sweat glands to overwork, Samantha was drenched with sweat on her own. Her pits, stomach, and back were absolutely soaked with sweat. Her body must be working harder than she was giving it credit for; Nate decided to give her a break by slowing down with her.

"You okay, Sam?" Nate asked worriedly. Her face was bright red and she looked exhausted.

"Y-Yeah... My legs are dead..." Samantha replied tiredly "I think you should go on ahead... I just... suck."

Nate felt a sting in his heart when he heard that comment from her. He'd never seen anyone look more defeated than she did right now.

"Nonsense! You're doing great! Keep going... Don't give up! We've almost got to the first checkpoint!"