Give me the finger will ya'.
I've been dating the same woman for six months. Last night (surprise, surprise!) she sticks her finger up my ass during sex. Yeow! I flinched and then got off of her. I was pissed, and we had some angry words. She said that she was trying something that her girlfriends told her to try. It would have been nice if I'd had some warning. A quick whisper is all that would have taken. Fuck her girlfriend. How about letting me in on the deal? A little lube of some kind (spit, even) would have nice. Am I acting normally, to get pissed about this? Our relationship will survive this, but I plan to show her anyone's comments.