Let's say whoever is giving the handjob has any kind of bodily fluid on their hands (semen, blood, vaginal fluid, fecal matter, even saliva--yes, certain strains of Hepatitis are passed through all bodily fluids including saliva)--and the infected hand comes into contact with your penis which not only has a hole, but also could have a cut or abrasion unknown to you. If the infected matter is passed from the hand to the hole or cut/abrasion, you leave yourself open to possibly catch something. Also, if the person's hand has any kind of sore--and I don't mean, huge gaping flesh wounds here, I'm talking even little sores like hangnails that bled, or a scab that got picked, the sore may come into contact with either A., your bodily fluids therefore transferring a possible disease, or B., the hole or sore on your penis, therefore possibly transferring a disease. Do your research and become educated, do not listen to people who tell you that it is impossible to catch an STD from a handjob--if you look closely, one of the replies you got before mine states something like "It's impossible to get an STD from a handjob..." Then, shortly after that, the person changes their mind and says "Oh...wait a minute...well, unless you have a sore etc..." Also, herpes and genital warts are well known to develop on the palms on the infected. These are also very easily transferred through a handjob. Hope this helped.
