What can I expect from my girlfriend who was a former swinger?

Please dont get me wrong, I am not a novice when it comes to sex. At least I didnt think I was until after falling in love with the woman of my dreams. Problem lately is keeping up with her sexual appetite and by no means am I complaining. Just dont know enough about what she may have experienced in her past sex life. She never seems to get enough and I worry that I may not be satisfying her and ultimately lose her to her former lifestyle.