So here's the details, my girlfriend is quite tight and is like an elastic band. She doesn't stretch out for any extended period of time. Given a couple days and she's back to normal. She doesn't have any problems getting or staying wet, and generally the sex doesn't last too long (20 - 30 minutes of virgorous sex, not including foreplay) as she likes it fast thrusting. We don't want kids (yet, lol) so I'm always wearing a condom, which also is lubricated. Sex usually occurs one to three times per day on 3-5 days of the week. So to the point, now that I think I've put out the pertinent information, I've found that I'm get patches of raw skin on the head and on the top of the shaft. Is there anything I can do to help prevent this beforehand, or ease the pain from rubbing in my boxers when I walk etc afterwards?