Ley Line pretty much guarantees if you have two or more slots open, you'll get twins or triplets. So, I find it vital to 100 baby challenge. I use Good schools, Child's Play, and Ley Line in my 100 baby.
I don't find the romantic aura to be too helpful since I get the beguile trait and max charisma and my sims can meet someone and instantly be friends and TFB in a matter of minutes, even without it.
I spent a lot of days in my 1st Matriarch's YA stage taking a break from having kids, but she's 19 days to elder and she's had 38 kids, pregnant with a singleton for baby number 39 cause we have only one slot open in the house. She's been at 19 days to age up for 3 pregnancies now. I imagine, if I did it right, I could do this whole challenge with my 1st matriarch. I've debated if I want to do that or not. I'd like to see other genetics at play here.
