With the greatest respect, sir, this solution may work for you, and as such I'm happy for you, but it only works because you've forever given up the active role for the woman you love, and are happy with the passive, augmented by fantasy. Not everyone can emulate you, or, I'll have to say, would want to.
Nevertheless, best wishes to you both.
I seriously and wholeheartedly respect this statement, and your viewpoint, Libertine. I also agree with it.
And I would add that your lifestyle - which I believe if I read correctly is an open and healthy one where your partner also happens to share this fetish, is similarly one that few of us can emulate. You are extremely lucky and I congratulate you for it. But some of the younger people on this forum may wait/waste their entire lives looking for that partner who not only is perfect in every other way but that who also shares this fetish. I merely want to demonstrate that it's perfectly possible to live an extremely happy life with someone who's perfect but who isn't turned on specifically by tickling.
[*SIDE NOTE* I think young people may think that because someone IS very ticklish that they are INTO tickling sexually. Trust me as someone who has been around the block a bit -- this is decidedly NOT a fact, lol]
Or to put it another way, I submit that it's better to live a life with a loving, caring, sweet and compatible partner but who doesn't check this particular box than to wait a lifetime for someone you may never find. And if you use this box to check as the starting point, you may be setting yourself up for a lot of misery down the road with other relationship problems because yes there are more important things to look for in a partner than this fetish.
As for telling your partner, if it's eating you up inside, than you probably should tell her. Buckwild's anecdote above is the perfect result, which is awesome. You can also read about other not-so-great responses from partners. My choice to not tell my wife explicitly is my choice, and I stand by it. In fact the fact that I think she knows but she doesn't say she knows is actually kinda hot. Maybe the "unstated" aspect of this is some sort of sub-kink for me, lol. That might explain a lot of my viewpoint!
Love and peace to everyone on this forum