There are three kinds of sex in a marriage. First is Kitchen Sex. This is
at the beginning of the marriage, you'll have sex anywhere, anytime.
Hence, in the kitchen. Second kind is bedroom sex. You've calmed down a
bit, perhaps have kids, you gotta do it in the bedroom. Third kind is
hallway sex. This is where you pass each other in the hallway and say
"Fuck you."
There is also a fourth kind of sex: Courtroom sex. This is when you
get divorced and your wife fucks you in front of everyone in court.