I have to admit it...I'm a package nut. I do it all the time, its the same as guys checking out women as they walk behind/walk by/see them across the room. I check out a guy's package. Why? Don't know, its kindof like love at first glimpse. Or the potential for love or maybe its just good ole fashioned lust of the unknown kind.
I refrain from doing this with people I get to know well, but always when I first meet them.
Now here come the cries of size does not matter, and while I believe it doesn't (motion of the ocean and all that), I do believe that a respectably filled out pair of pants go a long way into me giving a guy more than a cursory going over. For the guys who dare tread into this female mind, think of it as looking a the boobs. They're in your line of vision (if you squint a little and tilt your neck just a little) and they either make you look closer or they put you off and you move on to the next set.
And while I am old enough to know that sexual prowess comes with more than a cucumber or adequate length and girth...I wear a corset, I have a cock ring...and I know exactly how to use them both...