so i've been sexting this 9 year old girl for about 3 weeks now. she just told me she's an undercover cop, that's quite impressive for her age!
Do you think that it's appropriate to make jokes about these sorts of things?
What's wrong in getting turned on by a child? It wasn't real, it's not against the law!.
If what you are saying is real, then it was indeed wrong for you to try to talk a child into sexual relations.  Children do not deserve to be treated this way, and even attempting such a thing is illegal.