Breeding is not an easy task in "The Sims." For your pets to have babies, a few requirements have to be meet.

• A male and female cat or dog.
• Each pet's mood must be greater than 60.
• A doghouse must be available, preferably where the pets already spend a lot of time.
• Long term and short term relationship meters must be over 50.

Related Resources:

• "Sims Unleashed" Review
• "Sims Unleashed" Pet Downloads