That is a great descriptive image of you gf's reaction..I can just see it ! Your hands in her pockets, 'goosing' HER 'pockets' She's jumping around, trying to break away.....🤣....I once had the chance to do that similar thing in a bowling alley / arcade center...A graduating HS classmate of mine. Due to crowded seating conditions, this girl, L, an acquaintance of mine, wound up sitting on the same counter top just on the edge but between my knees (my legs were bent and just hanging down. She had a jeans jacket on, and during our sitting and watching others bowl, we began horsing around and I reached inside the open jacket and began tickling her ribs...It was like your gf---My friend couldn't sit still and eventually slid off of the counter....but I think I'll write this up and post to the True Stories section for better details..so keep watching thereYes exactly. That is why it is called the Hip Pocket area. I used to put my hand in an old gf's pocket and she jumped all over the place. 🙂 Not everyone is ticklish there.