Thank you all for taking time to answer my question!
Syphilis isn't transmitted by hand-genital contact, and it would be extremely rare for someone to have an infectious syphilis lesion on his fingers. Not to mention the extreme rarity of syphilis in heterosexuals in the US. Probably your "lump" is not an STD; and if it is, it still is unrelated to the sexual event described. See a doctor to check it out.
Bump..hoping one of the long timers can comment. Vance? Teak?
Dunno. Surely not a high risk, can't say zero though. Could be transferred through the rash on his hands or arms or something where gloves didn't cover. Could it be a wart?
Bump...hoping for some perspective.
Anybody have an opinion for this?