Imagine being a 10 year old single child. Your parents understand that you really want a little brother but your mother is no longer able to have children. So, they get you a Popplio to keep you company. You guys go swimming together, play ball together, have battles together. Eventually you become so close that you realize that he has become the brother you've always wanted. After a while, your bro has become strong enough to evolve! Your little heart is filled to the brim with happiness for your bro while he begins to glow with pure Pokémon energy! What amazing form will he take? As the glow fades you see... frills... and a mermaid tail... bro? What the fuck?

What was Nintendo thinking?