If this makes you think about sex and STI's its a good thing, hopefully more people in their punting and private lives will understand why condoms are a must and safe sex is great sex. You just never know who may have something. Handy hint, if your skin is intact (no cuts or abrasions) you are less likely to contract certain bacteria. This is important to know when being "fingered" the nails should be smooth and short as can cause micro cuts in the vagina (and other places too). But I agree, the chances of getting an STI from a handjob would be highly unlikely.