Speaking personally, I'd say my tickle fetish is deeply rooted in fantasy. My preference is the sadistic side that you mentioned, but this is pure fantasy for me, and I would never, ever act them out no matter what. It's called self control, and having a healthy grasp on both reality and fantasy, knowing the difference, and most importantly...being true to yourself and who you are as a person in real life.
In reality, the girls I work with are my dear friends, many of whom I've known for years and years. I would NEVER even think twice about doing something they didn't 100% consent to (and more importantly to me...are actually into and enjoy). That's self control. That's reality.
In fantasy, I'd have each and every one of them tied up and tickle tortured (among other sexy fetish activities) in all kinds of crazy scenarios. Hey...sort of like how I ACTUALLY do (lol!). Key word = fantasy. Sure I dream up crazy situations and scenarios all the time with not only my girls, but ladies I know, co-workers, etc. That's called a healthy expression of your own desires. Perfectly normal, and MOST IMPORTANTLY...perfectly safe, since it's in your mind.
So no...as long as you're true to who you are (LOL of course not including actual nut jobs among us!), know the difference (and respect it) between your fantasies and reality, I think it's incredibly normal to possess those desires. Keep em' in your mind (unless with willing participants) and you're all good in the hood.
🙂
Casey
www.heroineuniverse.com