Are you and your child have a good relationship to each other? How old is he/she? Maybe try to talk to your child but in a nice gentle manner. If he/she is 15 and under tell him/her that it's not nice to act that way. That he/she is still young for those things. Tell him/her the possible effects to of that. But since we're dealing with such delicate issue here, make sure to tell him/her nicely.

If your child is a little older, then advice him/her to be a lot careful and be responsible enough for his/her actions.

This is a pretty sensitive topic. I hope you can pull this off without your child getting embarrassed or kinda annoyed. :(

http://lh4.ggpht.com/_W_MoZYYA_fI/R-VIYT5NYyI/AAAAAAAABLQ/lxyuxi0Nk_c/photo-709079.jpg

I always look for something unusual or different, something unexpected that makes a point.

If it were possible, I would borrow a phone from someone my kids don't know, and I would text something to him/her along these lines:

"Hi Sxy, saw yr sxy pict "
"meet U at 1134 main today" (their home address)
"U look HoT"

Then I would identify myself and we could have a little talk about what might happen if that were a stranger who had gotten hold of their messages, about how unsafe it is wiht so many weirdos and perverts out there, or even if nothing like that were to happen, how one friend who gets mad or jealous, or just has a "bad humor" day can post any of those pictures out there for the world to see on Facebook or anywhere. Worst case? Child porn charges can send kids to jail.

If I didn't think I was getting through, I might take the phone away for a few days and make the teen come up with a reason for me to give it back, put the burden on them to convince me that I don't have to worry about them doing that sort of thing again. They need to start getting used to the idea that when THEY cause a problem, they need to fix it.

Here's a video you could watch together and discuss.
http://www.youtube.com/watch?v=-DN4zURdKzo

I would come up with some tough punishment right after I destroyed their phone in front of them. It is one reason my 14 year old daughter does not have her own cell phone.

well, there goes their phone without a doubt. I would not destroy this thou. It is evidence of a crime, and though I might want to protect my child from such stuff, therefore it needs to be turned into the police.

Any photo of a child under 18 that is passed to anyone else is porn. If two 14 yrs olds (boy friend/ girlfriend are passing the pics of each other that is porn and a crime. If the boyfriend passes pics of his 14 yr old gf to his buddies he is sending porn, and well they are all in trouble for sending or receiving.

My friend Beth who is a cop could no doubt explain it better than I can but you can bet she would get my child's phone if I seen porn on it.