I guess the rough line in the sand for pet names for me is, "Is it sentimental? If yes, then it's off limits (for my own sake) with clients."
And then I get to stuff like, what about sex acts or gestures and acts of affection? Like, the sex stuff is actually pretty easy, I think what makes sex with my partners intimate and close and "special" is that it's him-specifically-with-me-specifically, it's not the act in isolation. The only thing that might not be true for is certain kinds of kink stuff I do with one boyfriend in particular, but I really don't think I have the stamina to deal with clients' egos when they want a "serious" sub/Domme. I have so much respects for pro subs and Dommes here on Tumblr who I've been reading and following recently, I don't know how y'all do it. Maybe I'll work up to it some day, if there's more money in it or it comes up naturally, but aside from some light bondage or impact stuff I think I'll reserve the more, I don't know, emotionally heavy/loaded kink for my boyfriend, too?
Since I'm selling the GFE and that's what I'm good at, holding hands, cuddling, that kind of thing is open. But no naked-junk-to-junk cuddling, I'll always put my underwear back on since that's just sex safety stuff (I have to be accountable not just to myself but my partners, and we don't use condoms or barriers when we have sex, so I'm sure as shit using barriers for any and every potential fluid exchange act with my clients), so that's probably just for partners. I also just honestly don't really expect my clients to do the sweet little things that I really value with my partners, because, I don't know, that's not what they're buying my time for? I mean, if they want to spend $$$ on me to tangle their fingers in my hair and smile at me in bed, like, mazel tov, I'll gladly smile back and accept their money. But it seems unlikely. 'Cause, you know. Str8 dudes.
I guess it's odd that I feel the impulse to compartmentalize like this, but the erosion of these boundaries is what fucked me up with my proto-clients so I feel like I need it to stay sane and healthy.
ETA: Dude I should totally make a chart for this stuff in Excel.