The first is Smurf Sex.
The second is Kitchen Sex.
This is at the beginning of the marriage, you'll have sex anywhere, anytime, even in the kitchen while she's trying to wash the dishes.
The third kind is Bedroom Sex.
You've calmed down a bit, perhaps have kids, so you gotta do it in the bedroom.
The fourth kind is Hallway Sex.
This is where you pass each other in the hallway and say, "F*** you!"
The fifth kind of sex: Courtroom Sex.
This is when you get divorced and your wife screws you in front of everyone in the courtroom.