Ahhh! I typed a huge long post, just as the thread was being moved. Well, here goes again.
Genital herpes is another ballgame, but it's not a whole other ballgame. Genital herpes and oral herpes (aka labial herpes) are usually caused by two different versions of the herpes simplex virus (HSV). HSV-1 is usually the cause of oral herpes, and HSV-2 is usually the cause of genital herpes. However, HSV-1 can be transmitted to the genital region, and HSV-2 can be transmitted to the mouth. If either happens, the virus will cause symptoms identical to the symptoms of the virus normally found in that region.
The vast majority of people have oral herpes. I am not sure of the exact statistics, but I have heard figures as high as 98%. The fact that you have never shown symptoms does not necessarily prove that you do not have it, as many people with HSV-1 or HSV-2 go through their whole lives without any noticeable symptoms.
As ItalStal said, you should avoid sharing drinks, chapstick, etc. with your friend when she has cold sores. The risk of transmission is especially high at those times, although there is some risk of transmission at any time. Even if you already have the virus, exposure to others' sores can cause you to have an outbreak.
As demonbuttercup said, it is possible to transmit both HSV-1 and HSV-2 during oral sex. It may also be possible to transmit either virus from your mouth to your own genital region. For example, you might transmit the disease from one area to the other if you use saliva as lubricant during sex or masterbation or if you eat just before or after masturbating. You may also indirectly give it to yourself if you transmit herpes to a partner through kissing, oral sex or vaginal sex, and s/he spreads it to another part of your body through one of those same three activities. If you are worried about spreading oral herpes to your genital area, wash your hands before and after masterbation and don't use saliva as lubricant. You can protect yourself and your partner from herpes during oral sex by using a condom during fellatio and a dental dam during cunnillingus. Condoms are not entirely effective against herpes, since it can be spread on contact, but they do offer some protection. Again, while there is some risk of transmission at any time, be especially carefull when their are sores visable.
girlygirl
Posted: 27 Sep 00:32