Well, that's rude but rather funny at the same time. I'd have to say it is normal if you two have a rather amusing relationship, and by that I mean you two like to joke around and what not.
I only play my xbox 360. I never have any girls over so I don't know about this. My computer games are my love because People are stupid and I don't want to do anything but play xbox 360.
Nice one dude next time though shove it in her mouth. If I had a woman and she ever beat me at a game I'd say its game over for you now bitch! and then I'd get out my cock and fuck her senseless and shoot my cock at her and then say there now go clean yourself up you filthy whore and that's what you get when you pretend you can beat me at computer games.
Tobra