Sex drive

I would like to know if anyone has similar experience with the different sex drive in relationships and if there is any women out there that can maintain a high sex drive in a relationship. I find that women at the start of a relationship can have a high sex drive, like me, I like to be spontaneous and have very regular good sex. The problem is that after a while, which varies from woman to woman they don’t need it as often as I do, the sex is still good, but not often enough. Also I like to do something different from time to time like swinging, which gets mixed reactions. Is there any women out there that can maintain a high sex drive in a relationship and make love any day of the week at any time and aslo like to try different things like swinging from time to time? regards, like2meet