I'm a male, 23 and I think that my 'need for sex' has gone down slightly since entering recovery. But it's psychological, I wouldn't have said I was a sex addict but sex and drugs came hand in hand for me. Now in recovery I can actually have proper relationships. I still have the same sex drive but I just manage it differently, e.g - I don't have sex with every girl I meet anymore. I found in the early stages of recovery (first 6 months) I really didn't have any interest in sex because I was so so busy trying to knit my life back together. I'd not worry about it until you get to a year clean or so. If you're still experiencing a lack of sexual desire I'd look into it.
Natom.