All that means is that her bladder was full when they started to tickle her. Same could happen from laughter in other situations. Not very difficult to arrange also in videos, if that is what you like.
I've noticed many people get off on this. To me, it is no differerent from having to deal with a pappy that has not been house trained - hardly a situation that would turn me on.
When you tickle a girl you try to have her in total control. Or make her as helpless as possible. Just laugh like a hopeless small kid. If she wets herself (very seldom as you say) this means she was totally helpless, and under control, as she did the last thing she will want to do. No single resistance anymore.
However on the other side, this may be so much embrassing and therefore not ethical. Plus some may get disgusted.
Doesn't do it for me...but I must admit the lack of control on the part of the lee is kinda cool...I don't think I would want to be tickled until I peed myself, but I'd definitely like to get close...😉
gotta keep to some limits. For instance, if you did 'tickle someone til they peed themselves' one should stop there. Golden Rule for Tickling, in my mind at least, is: Maintain Control, but NEVER Push The Limits! If your lee is your gf or bf, and you go beyond the limits of that person, chances are you will end up ruining that relationship.
Now if the ticklee themself is actually turned on by loosing control and wetting themselves, thats another matter entirely.....then they need therapy or possibly a diaper....LOL