I find bruises and marks left on my body, after sexual activity, very hot.
Often I have looked at bruises or scratches a few days later and the memories of how they occurred seem even more vivid.
When my man and I started our relationship this time - (as opposed to 1997 when we were together a brief time) - I sometimes used to fight against his dominance in bed. This led to some wonderful bruises. One day a very narrow minded friend saw a distinctive finger tip mark on my shoulder and was quite shocked, asking how it happened. I made up a story. She would not have been able to cope with the truth regarding what type of sex I enjoy.
Holiday Bruises on February Photofest