I still occasionally see the same girl I first saw maybe five or six years ago. And by 'occasionally' I mean once every couple of months or so. Something about her keeps me coming back, and apart from obvious stuff like physical allure, one of the key reasons is that she's never not made the effort. Always sparkling fresh, best-in-knicker-drawer lingerie, nice glass of something or other when you get there. Her rate's slid up a little over the years, but not for me. Pay the same as I've always done. My tastes are reasonably vanilla, but we go off-menu occasionally. Have also met for off-the-clock pre-punt drinks a few times too.
She's a great girl and of course will retire or move on at some point, and I'm sure I'll miss her. But I'm never, ever in any doubt that this is not a relationship. I think she likes me but I've never asked for a freebie, nor would I. I wouldn't want to hear the answer. If it were 'yes' and I took her up on it, then the boundary would be crossed forever, and I think I like it better where it is, and being the right side of it. Interesting being pressed right up against the fence though.