When you're referred to as a newbie in the hobby world, it means you do not have any references from reputable providers to verify who you are & if you're safe. It does not indicate how many times you've had sex. There's plenty of newbie friendly providers who will gladly give you a ref to see other ladies. But just like almost everyone, there is still a light screening required.
A billion wow, imagine how much bad stuff you've caught. Chances are he has every disease in the book several times over, and probably some mutated super bugs that no one has even heard of before.