I made a wound in the morning. I scratched my leg. That wound consists in some little scratches and little spots where the skin was superficialy removed.
In the afternoon, i was with a boy. His status is unknown. I was masturbating him, but he didn´t ejaculate but I had some of his pre cum in my hand. A few minutes later, i touched and pressed my hand against my leg, over my wound. It was stinging a little, but it wasn´t bleeding... Am I at risk to get HIV?