All of the studies purporting to demonstrate links between possession of child porn and child molestation are plagued with methodological errors [2]. This issue is so emotionally charged that most of the science around it is garbage. The stigma against child porn is no different than claiming that consumers of staged rape fetish porn must all be closet rapists, and viewing this porn will simply make them act on it. It's a patently absurd claim.
About the only possessors of child porn that are at high risk of molesting a child are the ones that actually produce it, and so had already sexual abused children [4].
[1] http://www.jstor.org/stable/1123799?seq=1#page_scan_tab_cont...
[2] https://www.fd.org/docs/training-materials/2012/FJC2012/Chil...
[3] http://link.springer.com/article/10.1007%2Fs10508-010-9696-y
Reinforcing the circuits to reward yourself with more porn, not with molesting children. Your whole point is exactly the kind of pseudo scientific rationalising every authoritarian uses to push their "moralistic" agenda.
Real studies have actually shown that exposure porn reduces recidivism and tendencies to molestation, except in a small class of pedophiles which already have violent tendencies.