In Dredd (the 2012 reboot film), at one point Kay is trying to freak out Anderson by having her read his mind psychically while he thinks of outrageous things.

The violent sex thought doesn't seem to phase her much, but then he thinks of something that really "freaks her out," although we never see it.

Is it stated anywhere what he was thinking in this scene, either in production notes or deleted scenes or anything like that?