I think all of you don't know anything about HIV transmission during oral sex. These are facts. The reason people don't tend to catch HIV from oral sex is because HIV when exposed to the open air dies within a few seconds. Your mouth naturally contains oxygen found in your saliva, the saliva kills the HIV before reaching your soft tissue. When you deep through, there is less saliva there, therfore less oxygen. So it is almost the same as unprtected anal sex. The throat tissue is extremely sensitive and can become irritated providing perfect transmission for the virus. Suck cock opening your mouth every so often, produce lots of saliva and immediately withdraw if the guy is about to cum or if he's spewing lots of pre-cum.