Weird thing for me. After having my 1st pregnancy I noticed an increase. After the delivery I had to wait but the 3rd months after that I craved sex constantly. I didnt question it just enjoyed it all.

It could be that she is slowly getting used to having it whenever she would like, and perhaps it is just that good. I mean my ex we both lost our virginities together, and she was a once a month to maybe 2 weeks. (also because of time) But then she finally was able to move past some hang ups, and she finally got use to the feeling of having sex, and next thing I know she was wanting me to pull over into a dark parking lot before I dropped her off at home, and such.

Perhaps she is now really enjoying it, is comfortable with herself/you, or with her own sexuality. Generally the more you enjoy and have it, the gradual increase in wants...watch it next its going to be a few times a day.

Also, she may also have become more emotionally attached to you as well; increases drive.

I think everyone's sex drive changes over the years and according to other events and influences in one's life. I have also learned to have sex three times a week. I used to think that anything less than daily was going to kill me.

A persons sex drive fluctuates according to so many different things; comfort level, emotional attachment, stress, fatigue, etc. I think that generally, womens interest in sex increases as they age and become more comfortable with their own sexuality. And being comfortable with whomever you are being intimate with makes a huge difference.

Hormones and what's going on in her head determine sex drive. Your situation is very common.