Don't worry ... you'll be just as much a geekette as me after 40 years of being a fan of The Man.
I'm not letting myself get up and go get the book Starship Troopers, not even for reference, because I know I'd wind up reading it yet again. And that is the beauty of Heinlein; you can read him over and over and over, and find fresh meat on the bones.
I think I'll take Time Enough For Love with me on the plane ... or Number Of The Beast.
Now you're making me have a hard time deciding what Heinlein to read next! :)