You can download a burner app and pick your phone number. It works through your regular phone. Costs about $5 per month. If you have given to someone that you are nervous about, you just burn the number and it vanishes. With the few I got to the point of giving my "number" I explained when I gave it that it was a burner number (and in my case because I didn't want racy texts coming through my phone that my children frequently pick up and read). Plus I was able to lock down that burner number without locking them out of my regular phone.
I second the glove comment. Also, this may not be a big deal for you, but I am disease phobic. I have nothing and want nothing. There is a lot of herpes 1 and 2, hpv and some nasty stuff floating around. At this point I wouldn't even kiss someone without inquiring about herpes 1 (and remember you can get both of them by mouth and the other).
I never did more than that so I never had to go into the really awkward testing question, but maybe kml or someone else has some idea of how to handle that.
