I don't think I would ever want to be "outed." I've been tickling ever since I can remember. Once when I was a teen. one of my aunts said in a fairly significant group, "Hiram always likes to tickle." These days I think that curious because many folks in my extended family were into tickling, including the aunt that said it. At the time I remember getting extremely flustered.
In my life I've dated about 25 women, all but one before my marriage at age 24. I don't recall a single one that I saw a second time that didn't get tickled. Some let me more than once, and others didn't. Knowing what I know today, I doubt I could be happy with a woman that isn't deathly ticklish, yet at least tolerant of it.
Here's my point. The world is an almost infinitely exciting place to live these days. I think there are REALLY fun things to do every day and every weekend. I like going to movies, and baseball and basketball games. My wife does as well. I like camping and canoing the wild rivers and backpacking the wilderness. The wife does occasionally. I like reading and discussing the object. I like picnics in the park and walks by the lake. Same with bowling and golf. Part of what makes these things fun is doing many of them coeducationally. One thing I discovered long ago was that when you do things coeducationally, there will always be a chance to get in some serious tickling.
I think in the groups I travel, to be "outed" would be destructive. By that I mean it would be baring part of my soul, and would make it so I could no longer be myself in them. I think I would be as flustered as I was that day as a teen.
If you really like this young lady, take her to dinner and a movie. Next time take her to a ball game. I bet you will get lots of tickling in, but the idea of being a "ticklephile" won't get in the way if she feels about it the same as I do.
If it ever gets really serious, believe me, both of you will know what goes on inside the other.
Hiram