sharing needles that you inject with. Knowing these 3 are all you need to know to protect yourself against HIV
. Your situation is a long
way from any of these 3.
Even with blood, lactation, cuts, rashes, burns, etc the air or the saliva does not allow inactivated virus to infect from touching, external rubbing or oral activities. The above HIV science is 40 years old and very well established so there is no detail that you can add that will make your encounter a risk for HIV.