Getoffme,
Wow, you are a lucky guy, and sounds like you have a great tickle relationship. I'm glad you get tickled on your stomach a lot. Me too, and the belly is such a wide open tickle target. Can you describe what your belly button looks like, and how your girlfriend tickles there? Does she make you say things while being tickled? While growing up I had a babysitter who used to pin me down and she'd stroke my belly and make me say "please tickle me" to get her to stop, and then when I'd say it she'd say "okay, if that's what you want, I'll tickle you!" Now THAT is tickle torture!