This is weird but recently I was making out with a guy and tasted blood. Somehow I must have cut his lip. I didn't have any cuts in my mouth that I know of, and hadn't brushed my teeth for awhile. How worried should I be about HIV transmission?
The short answer is not at all. There are many biological reasons why transmission through deep kissing, even when tasting blood, is very, very low. Other STDs like gonorrhea, herpes and syphilis have been transmitted this way, although rarely, so get an STD check up if you haven't recently.
To your health,