How do you get married on the sims 3?

I have these two sims and they are on ';romantic interest'; how do i get them engaged and married!?!?How do you get married on the sims 3?
Yea do the romantic options until it says, propose to go steady


then you do that


then ask to marry


and then have private wedding and you get married right there and thenHow do you get married on the sims 3?
first you have to get them become best friends...then lovers and then after they kiss...hug...and the rest for about 5-6 times you will get the option to get engaged :) and then you may ask the other sim to move in with you
The options will be on the ';romance'; menu once their relationship is good enough.