My partner and I recently had prolonged, very rough sex. My penis now feel sore on the tip. There is no redness, no bumps, and it does not burn when I pee. The only "symptom" is tenderness when touched lightly, a mild stinging pain that last only a second or two. When I inspect the penis, there is no sensitivity to touch, only to pressure. I'm assuming this could be from the rough sex, both vaginal and oral but want to make sure as what I'm experiencing doesn't sound like any STD I've ever read or heard about.