I must admit I have told several guys over the years ( civvies not clients ) that I love them when I've cum.
If its been a strong powerful orgasm it is like. Right now, for that couple of seconds I do love you
Unfortunately with one guy that I had been seeing for a couple of weeks, I could tell he was so happy that I had said it. Then the awkward conversation " eh I don't actually love you, but I did for that second"
I do have the odd mild orgasm with clients, I've never said it with I Love You with any of them thank goodness.
But I have had a couple of guys say that they feel that I really like them, eh no, thats just maybe me thinking that you're OK and damn good GFE acting