You spot a beached Orca, asking you to help him, you you get some pills apparently was one of the anthropomorphic animals, you help him getting some medicine, after he downs the entire bottle of pills, his body shape drastically alters. The Orca's body becomes humanoid... and ripped, defined abs and a muscular body is on his form. White spots are near his eyes like orcas, black skin with a white underbelly, and a fin on the back of his head.

My name is Bob and I will protect you.

The orca said, for being a fearsome predator now turned into a anthropomorphic body, he seems to want to protect you as thanks for saving him, plus his eyes are rather cute for a anthropomorphic orca. Also he is naked, which doesn't seem to bother him, you may have to give him clothes if his nakedness bothers you.