Quite possibly a mother and daughter at a clothes-optional beach. Both seem comfortable and there is no overt power exchange at play.......and yet? For me there is still the slightest hint of the clothed woman having some sort of advantage over the nude one. But given the age difference, it could be natural to assume a mother or elder already has more authority?
Then to take age and maternal authority out of the equation, we have something like this:
Clearly a posed shot with equally balanced expressions of attitude, so why does that blonde still seem to have the upper hand?
And how about this?
A couple equally in love, peers in most ways......but that lopsided condition of clothing somehow makes me think it was the lady on the left who made and served the coffee.
Now, change the expression and focus of attention and the clothing imbalance becomes a statement:
"Why look at you......all naked and vulnerable.......while I, obviously, am not!"
And to ramp that up a notch............
....you just need to add a little control and discomfort.
Of course, sometimes there's more to the power imbalance than just clothing or lack thereof:
Even if both were clothed, the woman on the left clearly is the mentor. Factor in the nudity, and well.....you can see for yourself.
But authority can naturally be much more blatant:
Being 'walked' like a puppy is a pretty distinct display of who is in charge, regardless of clothing.
And ultimately we hit upon (literally) the best use of CFNF as a display of power imbalance:
Clearly not as subtle as two ladies strolling a shoreline with only one of them clothed! Sometimes being the only one naked also means you are the only one whose bottom is not only bare but totally unprotected!