While menstruation is a factor in those lovely arrousing odors, you mentioned that you had oral sex with her many times...so she couldn't possibly have been menstruating every time. You mentioned she'd become a vegetarian and I believe that's the biggest factor in her change. If you run on clean fuel (veggies) you smell less and better in general than someone who eats meat or junk food. Even my own body odors differ with diet. I have heard women say that vegetarian men have better tasting cum. I'll take their word for it. I can personally vouch for vegetarianism leading to different, and in my opinion...better... smelling/ tasting pussies. For the record, I'm an omnivore, so this comment comes with no agenda.
