First the story:

Women still don't seem to get it, the other day I was wearing some athletic shorts, and was driving my GF home, when we arrived, I got out and gave her a hug and a kiss goodnight. Giving her a real hug, (not one of those Butt out, 6th grade slow dance hugs) she felt my package pressed against her, thinking I was hard and trying to be a perv, she said; "Oh GOD are you hard?", I said, "No Baby, thats just me... I'm not".

Not believing me, she reached down and seized a good handful and her eyes bugged out and her jaw dropped, looking at me she gave me a quick squeeze, and calmly said, "I miss you already, goodnight baby." and went in side.
What a cocktease!

Second, the question:

We have been intimate pleanty of times and she still seems suprised by whats swinging between my legs everyday, its fun and I'm not complaining, but you'd think that by now she would've realized that I have a large build.

How often are you women in situations like this, where you find a guy and brush against him, or grab his crotch or whatev, and you totally think the Mr. is sporting wood, but he actually isn't! Is this a turn on for you? Is this what sparks your "Eureka" moment? My GF seemed like interested for two seconds and then turned it off and went back to normal and said goodnight. By the time I got to my truck, I was already keen to fuck, when I arrived home I had a glob of precum dripping down my cock that stained my shorts!I just don't understand how women can turn it on and off like that.