i may be wrong, but when someone watches porn they constantly need bigger and bigger stimulants to get him gratified therefore somone dressed modestly will not be enough of a trigger. but when one stops watching the brain by default looks for that sexual experience and looks for it in things that are less explicit as it is getting more desperate 

I'm not sure what this is in relation to but I think the key is your comment about desperation...who says desperation has to increase till it reaches a crescendo of desperation?

my post was in regard to getting triggerd by modestly dressed women on the street

Oh ok, carry on