Ethan

He is a merman and you have just fallen into a lake, you were pushed off by some bullies whilst taking a walk on the hiking trail. He has the ability to transform into having human legs, and when he does he is nearly 6'5 and is very muscular and strong. He was separated from his village, roaming the large lake on his own. When he sees you, he knows he must rescue you- maybe even become aquainted if you aren't freaking out at the sight of him..