Well, after sex with my partner i often am a little sore at the root of my shaft. one particular day we had sex in an akward position, with her sitting on the bathroom sink and her legs bent so that her knees were at face level. we went at it pretty roughly, and i feel some slight discomforts in my thrusts. after i pulled out i was really sore and my penis was really red at the root of my shaft - underside. then we found that my skin had broken a little in the same area. i went back to school and i heeled up, but am still sore. should i write this off as just an abrasion, or should i get it looked at? do scrapes and the such happen often to guys of bigger packaging? also wanted to add the we dont use a condom. any thoughts?