Welcome to the forum. I see you asked the same question on the international forum. You can expect a more or less identical response.
Fingering has never been known to result in HIV transmission, either from the fingerer or fingeree. Same for all other hand-genital contact, like mutual masturbation -- even if genital secretions are used for lubrication. If you think about it, at any point in time, lots of people have various nicks and cuts of the fingers, so over the 3 decades of the known HIV/AIDS epidemic, there must have been billions of episodes of fingering of HIV infected partners in the presence of such lesions -- and still no known transmissions. So it is apparent that such lesions make no practial difference.
I will add that it is very unlikely your partner had HIV, as you seem to already understand. It is probable that most escorts (expensive female sex workers by appointment) know the score and work hard to avoid HIV, e.g. by consistent condom use for vaginal or anal sex.
Those comments address your specific questions, but to be explicit so there is no chance for misunderstanding:
1) No risk.
2) Nail biting makes no difference.
3) No risk here either.
4) There is no reason not to continue unprotected sex with your regular partner. In addition, I recommend against HIV testing on account of this event.
I hope these comments have helped. Best regards-- HHH, MD
Just one other question, as im slightly confused reading other posts in the std forum. Is it possible, during mutual masturbation to pick up any of the other stds. For instance could I finger a girl and then by masturbating myself transfer vaginal secretions to my urethra, picking up one of the bacterial infections?? Or cud one transfer a portion of herpes virus etc during mutual masturbation.?
Thanks again, just trying to further my knowledge
It is theoretically possible that some STDs -- especially those transmitted by skin-to-skin contact, like herpes, syphilis, or HPV -- could be transmitted by hand-genital contact or fingering. However, any such risk is exceedingly low; in my 4 decades ( ! ) in the STD business, I don't think I have ever seen any patient with any STD acquired this way. You can safely disregard this possibility.
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