I was adviced that even with the condom half down, and despite of some bad abrasions that occured on my penis -- where the condom was not covering -- that I was not at risk.
Dr. HHH, says that abrasions do increase the risk -- which would qualify as a risk. Dr. HHH:
Does an abrasion of the penile skin elevate the risk of HIV if exposed? Probably a little bit -- but not much.
On the body website -- asking the experts. This is what they say:
HIV can enter his bloodstream through microscopic cuts and abrasions that normally occur on the head of the penis. These microscopic openings are a result of the friction that normally occurs during intercourse, and are too small to visually see, but large enough for HIV to enter. These small cuts/abrasions are most likely to occur on the head of the penis, since this is made of mucous membranes, which tend to abrade easier than regular skin. The more cuts/abrasions there are, the greater the risk for infection. Also, if a man were to have any open lesions on his penis due to other STD's (like herpes, syphilis etc.), it would be much easier for HIV to enter his bloodstream.
It's hard to come to a conclusion with this topic -- because it said to be a high risk exposure.