I just finished playing my Snow White & her 7 children. I made sure her lot had the twins trait. I gave her & her husband Charming the fertile trait. Her 1st pregnancy resulted in twins, then her 2nd pregnancy resulted in triplets, so I had to make her husband a roommate to make room for more babies & her 3rd pregnancy resulted in twins again. As a total of 7 children.
I just recently aged up her two eldest children from teen to YA & made them roommates. Snow's husband Charming is back in as household. I've now decided to make one of her youngest of the twins her heir for the Legacy Challenge.