So what if your S.O. had a couple of friends over, and they were all goofing off and one of her buddies started to tickle her, playfully? Would that make it cheating, to you?
If it does, then that's fine; it's your relationship, and all relationships are certainly different when it comes to strictness and such. But keep in mind, said friend of hers who tickles her might not know that. I'd say, in stricter relationships like that, it would be a good idea to have that understanding between you and her, and if something like the earlier scenario were to happen, then she can simply tell her friend not to do that. If he keeps going, then of course you have the right to be pissed at him...but more because of the fact that your S.O. had warned him seriously beforehand.
We've got to remember that not everyone in the world who likes to tickle people are getting any sort of sexual satisfaction from it. Tickling happens - often spontaneously - and it's more than likely an innocent thing. So I suppose that should call for a bit of flexibility on the topic, at the very least if the person doesn't know you might take issue in that.
As for what you said about tickling not being gratifying sexually to everyone, that may be true, but what guy tickles a girl if he's not trying to be flirty with her? If a guy is tickling my girl, that tells me he's just looking for an excuse to touch her and I'm not gonna be cool with that.
As for me, I'm totally fine when my fiancee's friends tickle her and such, which apparently happens often. :lol I suppose it's mostly a trust thing, as I know she wouldn't like run off with someone simply because they're tickling her or anything. xD And, as TKLVR said, I do often encourage it as well. 😉
Given a scenario where we're both in a setting with other known tickle-lovers (a future gathering, let's say), I'd also be fine with it just as long as she and I have that mutual agreement and consciousness of the situation. Again, personally (may be different with others), I'm ethically fine with others tickling her, even if it's causing some sort of sexual reaction. But because of that consciousness - and trust that she knows what she's doing - it really wouldn't be anything for me to sweat about. 🙂
Will I get jealous? Ohh, very much yes. But it's a good jealous. :lol
Anyways, that's my view on it. :happy: (Gads, I gotta learn to shorten my posts more... >_<; ))