By fulfilling wants and having a high mood... how else?
You have to earn it as a story reward, before its available in free play.
The best way to earn points on Sims 3 is to take part in surveys, offers, and contests, play games, and watch videos. You can check out some of these options by signing into Rewards1 and going to the EARN menu. Select OFFERS or SPECIAL OFFERS to see the amount of points available.
Yes. You have to earn enough skill points and then you can unlock it in the "items" section
If you have 10000 lifetime happiness points, you can purchase the reward "fertility treatment" which increases the chance of twins or triplets.
Keep granting Sims wishes! 40,000 points comes a lot faster if you complete their life goal.
like all other sims games, your sim has to practice, earn skill points, and soon, they might be painting so pretty cool masterpieces.
You can increase your chances of conceiving twins by purchasing the Fertility Treatment lifetime reward for 5,000 lifetime happiness points.
go to cheatcc.com
you need about 15,000 points to buy this. after you do go to life-time rewards and there you go, it works the best when your sim is actually in labor... it makes the chances go higher when you bought it.
You need all the points for it to count, otherwise it doesn't work.
You will gain 35,000 life points to choose another life time wish but you don't have to if you don't want.
you have to have Sims 2 university expansion pack then get a career and it is a career reward