So I had sex last night and today my left breast has spots on it. They look like bruises and little red dots, but does not hurt to the touch. In fact, my breast is not sore at all. They are not puffy, itchy, painful, or anything! What could have caused this? I also had a spot or two on my inner thigh a few weeks ago but they did not hurt either. It seems to only happen when I have sex...is this something I should be worried about?