I read somewhere from one of Hussie's many accounts on various websites that trolls have two dicks- one hate dick and one love dick. Unfortunately, I can't remember where it was (I think it might have been formspring) or whether or not he was being serious. U_U;
A few things to keep in mind on that.
1) I believe Hussie once said something along the lines of “people ask troll sex questions all the time and I never once gave a serious answer”
2) Formspring is where fat Vriska came from.