My opinion is it's better to just stay clear of this alltogether. There are too many complications to contend with, morally and legally and lines are blurred in the process. If you feel a sexual attraction to tickling children and underagers then you need to control yourself and possibly get help. That's how pedophiles are born, otherwise. Feelings they should have for adults or peers exclusively, they have for children and that, in my opinion, is a mental abnormality, that, if ever entertained, can lead to mental illness and of course a potential victim in an innocent child. Even if you did just tickle them, it's more trouble than it's worth.
Look at it this way: if you would have to make excuses for tickling a child, then you've no business touching them at all, since your motives are not entirely pure.
In the instances where it's your own child, if you're tickling them because you have a fetish then you have no business touching them that way, I think. It is morally uncooth and your children are being made, unwittingly, a part of it. They don't know the difference in emotion, but if you're so much as getting any kind of tingling in your pants or satisfaction or whatever you need to stop and think about what you're doing before you create something perverse between you and your children.
This is a cautionary to any parent with a fetish. You have an extra responsibility placed upon you because of your fetishes. You need to keep your fetishes in check around your kids and don't involve them, in any way, shape, or form, into your adult apetites. Don't expose them to anything even when you would consider it "tame" or "ok things to do to a child/around a child". Just because they're not aware doesn't make it right.
You're supposed to be their guardians, and that includes protecting them from YOURSELVES if need be. You shouldn't be taking any situation with them for granted or using it selfishly for personal entertainment.
Theres never a real, necessary reason to be tickling a child anyway. You may say there is, but there never actually is. Tickling is optional. And because it is optional you have the choice to omit it from your physical interaction with children. There are other ways and other forms of interaction to be just as playful without touching.
To do so, in this day and age, with the law being the way it is, would be playing it safe. A child, when touched that way, may inteprete it differently, report you, and then you're in a fix.
"BUT I JUST TICKLED HER! I DIDN'T THINK THERE WAS ANY HARM DONE!" isn't going to hold up in court, especially with that kid's parents pushing for a punishment and coaching her.
And all of this because you wanted to rake your finger against a kid's side for a couple seconds to see if she'd giggle or whatever?
So TOTALLY not F*CKING WORTH IT!
Use your damn brains, people, and more common sense! You're already smart enough to know the situations you should avoid, so avoid them! It's not hard at all.
If you feel that you HAVE to tickle a kid or WANT to risk it, then you're a liability unto yourself and shouldn't be crying to no one when and if your underage activities catch up with you. You've crashed and burned on your own. You sure as hell can't blame the kid. 🙄 😛
"That kid tricked me, officer! She was asking for it!"
...yeah right. Just shut up before you make it worse...LOL
EDIT:
And oh yeah, that Predator picture is awesome, oriya! 😀