Yeah, that's exactly what I have thought when I've caught women looking at my hands and fore-arms..

This is such a bizarre thing now that someone points it out... I never even thought of this.

I have really 'vascular' (I have no idea what the proper term is), hands and arms.. I guess you would describe me as medium-built fit but my arms have big veins in my forearms and especially in my hands. Not body-builder outrageous, but definitely not normal either.

When it is hot out and I've been working all day it gets pretty intense.

Is this a new thing women find attractive?

I ask because I never noticed it when I was younger, but now that I'm in my 40's I've noticed it more than a few times and mostly from younger women.