Supertickler and Neutron-I think you both might be right-I think it depends on your location. If you're more out in the middle of nowhere, there may be a smaller number of escorts, possibly working for the same "organization" and it might be wiser to clear it ahead of time (lest you be blacklisted). In more populous areas, I think the girl's may be more open (and used to) a variety of sexual preferences, and, as you said Supertickler, you can just do it and they probably will go along with it (unless, like you said, she has some emotional block about it). Painful as it is to admit, my exgirlfriend actually wound up as an escort here in NYC, and was tickled a few times by clients and she didn't have any problem with it. Also, if you say you want a ticklish girl in advance, you run the risk of getting a faker (this has happened to me many times), so I prefer to take Supertickler's approach and just do it as the normal part of foreplay (which is how most girls-and people-see it.....it's not EXCLUDED from sex, it's just not the end-all of sex for most people-not me, of course!!). Also, there are way worse fetishes than this, many unsanitary, and even with the tickling entering the mainstream alot more, I find alot of girls(even escorts) still don't know about it and it hasn't even occurred to them. Of course, you also run the risk of getting an UNticklish girl if you don't ask in advance-but really, most people who work at the phones at escort services don't even know the girls face to face and probably don't even know if she's really ticklish, so requesting one is probably a bit futile.