I had a really friendly email this week, after contacting me when I was on a day off last weekend with "R u available" (I do have an availability tab with this info on it) one line, no greeting message a few days later he sent "Do u get tested regular?".
I replied "Of course not"
Then I sent him another reply explaining why he shouldn't take anyone's word for it, an SP is hardly going to say "Oh, no I don't bother about my sexual health", whether she does or not it's only she knows the truth.
It is an annoying question, the one "are you clean" - I often bounce back with "No-one can guarantee anything, to do so would be ethically wrong. Do you get tested?".