Title correction: How do you react when she asks your count?

The second night the GF stayed with me she asked me how many others I had in my bed, my reply was a loud, "Hey now." and moved the subject along. After drinking and sexy times two weeks later the GF asked my count, I replied "I don't play that game." She replied, "Breath... I sensed your Scorpio when you said that." (I was preparing for battle)

I know she's going to keep pestering about my count. I don't talk about my sexual history (other than mentioning losing my virginity to a virgin) and I don't talk about exgirlfriends and such. I am thinking next time she asks me my count I will rattle names off in a convincing manner until she tells me to stop... but this girl is a clever SOB and will do the same to me.