The important fact, though, is that nobody is known to have ever acquired HIV by hand-genital contact. If you think about it, over the 3+ decades of the known worldwide
HIV/
AIDS epidemic, there must have been billions of hand-job or fingering events between HIV infected and uninfected partners, often with genital secretions (not just saliva) as lubricant, and millions of those must have involved blood contact as well (e.g., during menstruation). And yet no known transmission events.