I've never really thought of myself in this category. But I do have a story they may fit the bill. The person getting tickled was not my partner, but a close friend. Please feel free to comment. Apologies if it is a bit long.
Pre covid I used to attend fetish parties with a close friend. She was a very dominant woman who was into female domination and pampering. Particularly spanking, flogging, whipping, and some even more slightly extreme things. She was not into tickling at all so our relationship was only friends as we did not have similar fetishes or interests.
This sort of worked out as we attended parties together, went our separate ways inside, then safely left together no strings attached.
At this one particular party, she came up to me about half way through looking upset. She declared she was in the middle if a wonderful foot rub when the subby guy accidentally tickled her causing her to shriek and pull her foot away. "And you know how much I hate being tickled" she fumed.
She demanded that I look at him to determine if he was "one of them". By that she meant someone who was part of the tickling community, which she knew I was well familiar with.
As it turned out he was NOT a tickler, the tickling was NOT intended, and I did NOT know him. Still being upset, more because she felt embarrassed about her reaction, we left the party early.
Fast forward a few months to the next party and we are away again. Towards the end I realised I hadn't seen my friend in a while so I went to check if she was OK. Low and behold I found her in a corner receiving a foot rub by THE SAME GUY.
They were laughing and joking, past transgressions clearly forgotten. But I hadn't forgotten the "one of them" jibe, and the fact that we had to leave the party early when I was making some good headway with a couple of lovely Lady Lee's. I was somewhat pissed to be honest.
Well fast forward a few more months again, and my friend is now Mistress ........ (I will not reveal her name) and she has a full-time subby ....... guess who.
Was I mad, nope. Was I happy for her yep. Was I still looking to bring her down a peg or two, absolutely!
My one regret was that I'd never gotten a chance to tickle her. Especially knowing that was a huge chink in her armour. But also I really did value her friendship. However once, just once I wanted to hear her laugh. That unbridled laugh that only tickling the very ticklish can produce.
And that's what brought me to this point.
I couldn't, but what if someone else could? The thought of someone else tickling her became wildly exiting, even if I was just a spectator. And so I started to think .........