Nakedness. No clothing at all, not even silly little thongs that can be moved out of the way. The only clothing I don't mind on her (whoever) is stockings.
OWO and CIM are pretty much deal-breakers. Swallowing is on the bucket list as is snowballing and yet to do a proper facial, as in wanking over a girl's face as opposed to the girl wanking or blowing me and not dodging out the way quick enough. Reverse Oral, maybe some anal finger play on her, no big deal if not available, but not deep and no full anal sex. Condom or not, I ain't sticking mine up anyone's arse. I've found out the last couple of months that I quite like a bit of tie & tease and I'm beginning to trust being blindfolded for a few minutes. Don't go anywhere near my asshole with fingers, tongues or any foreign objects. Just don't. I've had a couple of tit-wanks. Meh, is all I can say to those.
Fucking at least once, preferably in mish.
No pretention. She's not a 'courtesan' and I'm not a 'client'. She's a whore and I'm a john. I'm there to pay her money for a fuck and she's there to fuck me for money. If we end up liking each other a little bit, too bad.
Lastly, somewhere at least as clean, warm and tidy as my own home, secure, in a safe area of wherever. A shower, a laugh, a Good Time, a coffee and most important of all, two-way respect.