Jon smirked underwater. So... she wanted to race, did she? Well, he could hardly turn her down being he was a competitive person too.

His feet started to kick and his hands spread out, pushing water aside as he tried to follow.

...however, while he might have been able to swim faster than some humans just due to his strength? His body was hardly hyrdodynamic. All that hair held him back and he was kind of bulky in all the wrong places. The opposite of a torpedo.

Sorry, Chiyo - you may not find this as much of a challenge as you'd like.