[Someone request for a Pokemon to Human Shifter? Here's one with the bottom half like a Milotic. ]

If he recently discovered that he's a shifter, I can relate. It takes some practice and discipline to retain human form. Get caught up in something and you'll shore-ly lose your control. Of course, once that's mastered, you can play around with your form to your liking.

[Case and point, the end of her Milotic tail waves hello.]