How many crunches will it take before I get a six pack?

Right I'm 14 and I'm a boy (on sisters account ;) ) and last night I looked at my stomach after doing one day of crunches and I had a six pack. I was amazed and when I went to be it was still there. But when I woke up they had gone. I did do crunches that night aswell. How long will it take and how many... show more Right I'm 14 and I'm a boy (on sisters account ;) ) and last night I looked at my stomach after doing one day of crunches and I had a six pack. I was amazed and when I went to be it was still there. But when I woke up they had gone. I did do crunches that night aswell. How long will it take and how many should I do. For example say about 2 weeks do 30 a day. I know I'm still growing so no answers like that please.
Update: I have got a flat stomach by the way
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