We've talked about it, but the OW said they're perfectly clean, and I told her the same. I know that doesn't mean a lot, but it is what it is.

OM is a proven LIAR, guys like that will run several women at a time, frequent bawdy houses, etc.

The country government usually has a free clinic, send her. The test for HPV is for females only, and HPV seems to cause genital cancer in men too. Your wife has forced you to assume all the risks of casual sex with none of the benefit, if OMW has STD so do you, but you never got to F her!