My fiancé and I had anal to vaginal sex a few days ago and I am now experiencing painful red pimple like bumps around my anus and few on my vagina. They look like pimples, and are painful. I had a fever for a few days and some discomfort when I urinated. The symptoms have subsided but the painful bumps are still there. We are both free of stds unless he has cheated and I didn't know, but does anyone have any ideas on what this could be? Possibly a bacteria infection?