The videos, ordered and paid for by pedophiles around the world, are broadcast live on the Internet.
PREDA is using the "scream therapy" to heal the psychological wounds of the abused children.
They allow the children to let out their anger by screaming and beating pillows.
Also, the judicial process in the Philippines is very slow and it takes several years to punish a culprit.
However, rights groups say that victims of webcam child prostitution often suffer from severe, lifelong trauma.
In just ten weeks, more than 20,000 pedophiles contacted "Sweetie" from all over the world.
So far, three men in Australia, Belgium and Denmark have been convicted in the case.
The cybersex industry is a billion-dollar business worldwide.
And it is expanding in developing countries such as the Philippines, where more children are being abused due to rampant poverty and a growing cyber network.
Human rights groups estimate that tens of thousands of children in the Philippines alone are forced to perform sexual acts in Internet cafes or their homes.