It isn't too difficult, once you get the hang of it. Much different muscle control. It's the first time in my life I've had any sort of abdominal definition.

[His fingers flex in one of his pockets, rubbing against a smooth stone. It's the only thing he's found that allows him to stay relatively still.]

A Naphil, actually, so I'm not too surprised Mana asked for a feather from one.