text: She may have a medical problem that causes the odor.  It could be a STD or something not as serious.  There isn't really an easy way to approach her about this problem.  But if I was you, I would suggest that we both go to the local clinic and have STD testing done.  At least that way you are protecting yourself from catching anything if that is the case.  Good luck.  But above anything else make sure you wrap it up!