Nymphadora's legs have always been somewhat of a mystery to Remus. She seemed to enjoy toying with them, changing the way her muscles looked when she was in a skirt, or in shorts, or even just when she was dressed for a mission. He could sit and watch her in front of the mirror for hours, deciding which way she liked better.
When on a mission, or just lounging about in the house, she makes them more muscular, as if to show a threat towards whomever she might be fighting (but secretly, when just at home, she prefers the way they look, and likes not being so into a perfect appearance). He finds it amusing that that would be her favorite of looks, that the woman who has the powers to make her exterior completely flawless instead of succumbing to the peer pressure of supermodel look-alikes makes herself so completely opposite.
What he finds the most curious about the different shapes, lengths and sizes, is that they always seem to fit around him perfectly when she leaps into his arms, or when they are engaged in other activities. He never asks however, for to him that would be like finding out how a muggle magician levitates his assistant, or can throw knives without hitting anyone.
It would lose its novelty; he wouldn't have to wonder anymore.
And that is something that he doesn't ever want to lose.