Generally speaking, EVERY relationships/marriages go through a reduction in the frequency of sex. This is normal human behavior and feelings. BUT, in most cases marriage will cause a noticeable reduction in sex due to simply being together all the time, kids and other normal life stresses.
For me, Sex was great before I was married, during the first 2 years of marriage (thu less frequent) but then after the first kid, went down hill dramatically. I think it was about 1 time in 6-7 weeks and it was very bad sex.. LOL. I think this is fairly common in \"most\" cases but not all.
The most important thing about sex, really not just sex but emotional satisfaction, between a couple is the \"chemistry match\" which is very rare. For me, I had 2 women in my life were this Chemistry match was perfect and sex was great ALL the time, and as you can tell it wasn\'t my ex bitch wife...LOL