I think the baby boomer challenge has always been my favorite, i still dream back to the one where I had a wooping amount of 58 children in one of the challenges. That was good times back in the sims 3. Now I found what I like the least in the sims 4. The chances on multiples. Back in sims 3 we could really influence it now, even though you use all the options in game, it still felt like luck when I had twins and triplets.
Sim details:
Mother and Father:
Names: Autumn and Cobalt Stars
Traits: Nature Lover, Neat, Good
Aspirations: (Can be seen in the table below, with all the kids aspirations too.)
Rewards bought: Fertile, Morning Sim, Night Owl, (and many more, stopped counting at some point)
Children:
Names: (See table below)
Traits: Nature Lover, (And two random traits that I thought usefull for their aspiration)
Aspirations: (See table below)
Rewards bought: All depended on the aspirations
I started out my couple as a married couple and the first thing they did was get pregnant. Mom was pregnant all the time from the first wohoo to the 13th birth. 13 was the maximum number of pregnancies you could do in the given time.
The first day for the couple was spent on the Soulmate aspiration (they did not complete it though), until they had enough aspiration points for the fertility reward.
After that I let them work on various different aspirations so that they could gather reward points.
They both mastered painting and violin this was important for the child years.
I was lucky that my first pregnancy ended in twins and thought I had stumbled upon a lasting strategy here. But sadly not. The parents would talk to their children and quickly turn them into good friends. As soon as they where turned children I gave all children the Artistic Prodigy aspiration except one. This to me showed as the fastest aspiration to complete. I helped the children maxing the creative skill by encouraging them while painting. When they then had to play 5 hours on the violin they where already past level 5 in the violin skill when reaching their teen years.
This ofcause only went so fast when the dad had completed his aspiration and also did mentor them. That is also why a lot of the older children used other max skills than violin. The children I had max violin I also gave a creative aspiration first so that they got the extra boost from that, the rest got nerd brain for the quick learner.
The aspirations I did devide with what I thought would go slow and faster, so that I had a mix of slow and fast aspirations, this strategy was made because I thought we could influcense the amount of twins and triplets and I therefore would get to do some aspirations twice. But I was sadly wrong. I did not go for the potion of fertility from outdoor retreat in my final run. I did try to get rid of some of the population though to see if I could get more triplets, if it did actually help I do not know.
I think this covers the most, im tired after all my working, so ask if I did not cover all parts.