Scarlett Johansson is definitely Maxim-crowd drool-fodder, but her tight leather, red-haired role in the upcoming Iron Man 2 as Marvel Comics’ super-spy Black Widow (aka Natasha Romanov) is destined to propel her to an even greater height of unspeakable and deviant fawning: full-blown Nerd Lust. Poor Scarlett should have stuck with the modeling/singing gigs. Still, thanks be to Entertainment Weekly for busting out the first image of Scarlett “Ryan Reynolds is MY man, ANDY” Johansson, because sneak peeks are always …