I'm kind of surprised to read that, Rustom.
I've only had that happen one time. At Blue Angel 5 or six years ago.
I do tend to see the same girls a lot, so maybe that is the answer. They bring the lube in with them and they use it if needed.
That may be the explanation. If you are seeing a new girl, she may be trying to hide the fact she is not getting naturally lubed from our skills.
Once you are really comfortable with each other, the worry about that disappears.
By the way, I read a very interesting study recently. According to the research, women very seldom moan and make noises when they climax. The noises seemed to be primarily to make the guy happy thinking they had orgasmed. It also found that it is quite rare for a girl to climax from intercourse. It said the vast majority of female orgasms were from self-masturbation, then oral sex (occasionaly), then intercourse (very rarely). Maybe I can find the link and post it later.
Just reviewing what I read. Not suggesting all the common claims in reviews of the girls climaxing are not true.
SL