I would retract that statement if I were you, unless you really believe that raping children is somehow more pleasurable than eating ass.
But seriously, Hedonism is at its core about placing pleasure as the highest good. Meaning, it's not committing immoral acts, but the pursuit of pleasure that defines hedonism. The problem for you is that is raping children an actual difference? I would say no because under the libertarian definition of freedom, restriction principles like the NAP exists for this every reason.