It seems after unprotected sex (with the same partner) right around the sulcus area (below ride of head and right above foreskin, I'm circumcised) seems to get red or raw. Doesn't matter if it's super well lubed or not, seems to always happen to a certain degree. I had sex again after a month break and she was super wet and really tight so I had to go really slow for a couple minutes before I could enter all the way. When I finally did she came a couple minutes later, all around lasting probably 5 minutes of sex. I noticed the marks again and it got me curious, does this happen to anyone else? or is it just me? A while back when I was having a lot of sex, I mistook it for herpes (not even close to looking similar, I'm a hypochondriac) and I made the embarrassing, but smart choice to get tested after panicking and the nurse laughed and said it was friction and to stop using it so much.