The first thing that popped into my mind when I saw Frankie's face was that '80s movie "Just One of the Guys" and the sock scene:
*pulls sock out of "his" pants and laughs, then reaches back in* "Oh c'mon, how small can it be"
"... you'd be surprised!"
The second thing I imagined was, unfortunately, this: http://www.youtube.com/watch?v=i5aciMK8oOg
Knew it right when Frankie brought the "gentlemen" the drink.. I either a slender man or a butch.
Oh, definitely a she, just because, well, Frankie hasn't been there yet! It's a really great androgynous character design. I would have loved Chris either way.