"You are such a sore loser!" she yelled across the field. She has an exhilarated smile written all over her face. She was over the moon beating his speed record.
Bobby kicked the ground when he heard Lili taunted him for losing the game and when he asked for another lap to determine the winner. He knows he is being childish and, yeah, a sore loser indeed. But he can't accept the fact that she won without much difficulty.
He opened his arm and shrugged his shoulder. He scoffed when she won't stop laughing at him. With her, laughing without a care in the world, his anger evaporated into the thin air. He just shook his head in disbelief, that this little girl beat his record like it was nothing.