Fictitious for me. Real life stories are great, too, don't get me wrong, but there's not a lot that can happen in them; the most tickling the average person experiences, unless you go for an actual session, is that the 'ler just kind of pounces on the 'lee and tickles them crazy for a few minutes.
Fiction stories are where the fantasies happen--the interrogations, the mad scientists, the magicians and wizards, the fairies and imps, the tickle-spa treatments that you can't get in real life, the renfair hijinks and military training and tickle-kidnappings... And it's where we can all see our favorite celebrities and fictional lads and lasses get a dose of tickle torture. Can you tickle Emma Watson in real life? Technically, sure, but what are the frigging chances, right? Can you get tickled by Harley Quinn in real life? No, you can't, because she's not real. Which makes me somewhat sad, even though she's a deranged murderer... XD
Point is, there is so much that can happen in a fictional story that just doesn't happen in real life, and that's what makes them awesome for me. 😀