Unfortunately, MRSA is unbelievably widespread.
I've had medical personnel tell me that at this point, they believe that 50% of all workers in hospitals, from doctors to custodians, have it.
My wife got it in the hospital after a car accident. They haven't been able to kill it off even though they gave her the "anti-MRSA" antibiotic via IV for five days while she was in the hospital after she had our baby.
Her outbreaks are usually on her legs or in her armpits. It CAN be very serious, but only if you're not aware of it and it's not treated.
She gave it to me once (no, NOT on purpose

) and I regret to say, it was in my genital area --- it was a cyst, but it felt like I had a third ball until it burst and they had to clean it up in the ER, thankfully with lots of drugs on board
HAVING SAID ALL OF THAT......
If neither person has blisters, boils (signs of MRSA) or open sores or cuts (that could get infected).....it is NOT going to be transmitted. Even though my wife is a carrier, I've only had it that one time --- now we just check to make sure there's nothing "worrisome" beforehand. If I have a cut, or if she has MRSA blisters, we wait. She carried our baby for nine months and had three outbreaks during that time --- and the baby was fine. We've been told by numerous health care pros that she doesn't have to avoid touching the baby if she has an outbreak --- she just has to make sure her sores are completely bandaged and that she washes her hands with anti-bacterial soap first.
IT'S NOT LIKE COOTIES. YOU DON'T GET IT FROM BEING AROUND GIRLS, EVEN PORN GIRLS.
With the prevalence of MRSA in 2008, chances are that everyone who's done more than a few scenes in the last two years has touched someone who carries MRSA, and didn't get infected. Use common sense, and if you spend one-tenth as much time checking the other person out as you do getting your monthly tests - you have nothing to worry about.