In what context "masculine"? Macho? A male-oriented environment? A "nature-nurture" thing?
It could be construed that the very nature of the question is sexist; certainly the use of the term "ladies" is a tad patronising - try "women" instead.
I don't think it's "masculine" at all. Male-oriented, yes and I veer towards the "nature" rather than "nurture" viewpoint.
Cheers
Whirls