How important is Woohoo to your Sims daily play?

I would say that it isn't that important to me, when I have a couple together, I usually don't randomly make them woohoo. If there is a want for it, I might have them woohoo, or if I want them to have a child, or if I want some drama, I will have one of them have a affair. Otherwise, I am too busy trying to get them promoted in their jobs and all that to make woohoo a big part of my game.