Hi Howard,
Thanks for the response.
And wish you a very happy new year as well.
Nobody ever gets HIV or other STDs by fingering, hand-genital contact, etc. In the 30 years of the known HIV/AIDS epidemic, with millions and millions of infected people, nobody has caught it from an exposure like this -- regardless of wounds or cuts on the fingers. You won't be the first!
So no worries. You don't need testing, and if you have a regular sex partner, you can continue your normal relations without putting your partner at risk.
Best wishes and happy new year.