How to create an Imaginary Friend in The Sims 3 Generations

1. First, create a couple of sims and make the female sim get pregnant.

2. After the baby has born, there's 50% chance you will get Imaginary Friend doll (there's also a chance a toddler who  created on CAS will have the doll in his/her inventory). If you get the doll, you will get a message like this one:

 The doll will automatically in your baby's inventory

3. After the baby has grown up to a toddler, make him/her play with the doll until there's a message says your toddler has be a good friend with the doll like in the picture below:

4. The doll will grown up just after your toddler grown up to a child. Now the Imaginary Friend can interact to your sim like a normal sim.

5. Now, it's time to go with chemistry lab. Make your sim have high logic skill and dicover many potion until he/she have discovered Imaginary Friend Metamorphium Potion (See the picture below) then make that potion (to make Imaginary Friend Metamorphium Potion, 4.500 money is needed).

6. Use "Offer to make real" interaction on your Imaginary Friend (make sure you have high relationship level and a bottle of Imaginary Friend Metamorphium Potion on your Sim's inventory).

7. Voila! Your Imaginary Friend has been turned into a normal sim.