What is harder than my dick when i see a ten year old?  Its body
I can't see why you would bring up something like this.  What are you trying to tell us?
I just think that kids are sexy and 10 is an optimum age for doing this stuff.
If this was intended as a joke, then you shouldn't be trivializing the harm that victims of childhood abuse suffer, as that is no laughing matter.  However, since you seem to be implying that this is how you really feel, then you need to get professional help with these urges, before you think about acting upon them.