"Meaning that two children who engage in consensual sexual activity to satisfy each other´s respective curiosity and sexual gratification with otherwise little regard for the partner are BOTH child molesters of each other. Correct?"

Where do you get this 'little regard for the partner' idea if the two persons decide consensual?

I am quite sure the partner 'doing' is getting a sense of satisfaction of their actions of 'giving.' Consensual means mutually agreed too permissions to do something together. All involved parties are readily giving and receiving...all in a shared receiving & giving manner fully agreed upon.

Now if one person decided to force themselves on another, when the other declines consensual acts, then comes in the molestation.