One of my friend has caught her 11 years old daughter watching porn. Now she is very worried. How can she stop her daughter from watching porn? Please help.

Put child block on her computer, and monitor her child. It's really just a matter of being a parent. A parent that parents, knows what their children are doing at all times. A child that's parented doesn't have the chance to watch porn.

Your friend needs to start being a mom to her children. It's really as simple as that.

Go onto her computer and block the sites and if she finds a way to do it again talk to her

First it is normal for 11 and 12 years old to be curious, has the parent had a true mother/daughter talk about sex. And after the video, did they talk about it and about how it was not real life

But a parent should have blockers on home computers, a 11 or 12 should have computer in public area and not watching in private