Presuming that he told you that it was some form of sex that you think is unnatural and very unusual, that's your prerogative, I guess. I can only tell you that I got HPV when I was very much a virgin. The worst I had done was outside-the-clothes necking -- I had had absolutely NO genital contact at that point in my life.
I was diagnosed at my first well-woman exam when I was 19, when I went to get birth-control pills prescribed because I had for the first time acquired an actual boyfriend, and wanted to be prepared in case my common sense ran away from me in the heat of the moment. My university health plan provided me with a very old-school physician, who removed the 14 lesions that I had at that point WITHOUT the aid of anesthesia, with snips.
I will remember the pain and humiliation of that procedure until the day that I die, because I got to experience being strapped spread-eagled on a table that resembled a cross, and then tilted backward at a 30-degree angle so that the doctor would have a good angle to work from. The nurse who assisted snickered when I was whimpering in pain, and made a dismissive remark about how I should have considered the consequences.
The consequences of WHAT? I did not do a darned thing to deserve that stupid disease.