You have to get caught by more than one kobold and then it seems to be a random chance that instead of standing by and wanking it, he'll instead grab you by the head and stuff it down your throat
I actually found the answer to this one. It's not random. You hit either the Jump or Attack button when there's the "x3" symbol is on-screen
Oh.. well.. then I must be lucky that my twitchy fingers that like to hit buttons for no reason actually HELPED me for once
