A handjob is considered a safe sax act and there is no risk for a STI from this activity. Touch from a hand will not pass any sexually transmitted infections, including the easy to pass STIs, such as syphilis or herpes which may be passed form close contact with the mouth, ass or pussy. Spit from her hand will not spread it. The saliva itself is NOT infectious. Direct contact to her mouth, could be. (Your PENIS in her MOUTH .. but even that is somewhat unlikely to transmit.)
Tim, I'd rather have a hand job than a blow job any day.
It's not embarrassing. The only embarrassing questions are the unasked ones. Please click the links below to confirm how each disease is spread. Don't take my word for it.
cdc.gov
cdc.gov
cdc.gov
cdc.gov
cdc.gov
cdc.gov