This was first posted in DF General. I figured it was better off here.Howdy, all! I started a fortress in an inaccessible mountain valley that only the dwarves knew how to reach (via tunnel) with a nice 3x3 location, 6 tiles of forest and 3 of mountain on the left, and a volcano in the dead center, and a river on the right side 3 tiles.
I also did a lot of raw tweaking to get my dwarves acting more how I figured they would act, including allowing multiple litters as a common occurrence--from 1-3 babies per litter.
In our 3rd year, an immigrant leatherworker, Rith Pillardreams, arrived married to a peasant. They had one child already, and each of them brought an animal. Later that year, Rith's agenda became clear. Out of nowhere, she was appointed mayor, and a scant few weeks later, she was taken by a fey mood and ascended to Legendary Leatherworker status after producing a stunning Cat Leather Quiver adorned with various ascension artwork. This was apparently extremely exhilirating to her, becase she immediately returned to her bedroom with Bim and went to "Sleep".
A season later, Rith gave birth to her first set of triplets. I'm not sure if she arrived pregnant or if her womb is just superdwarvenly fast, but Rith's family now comprised 6 Dwarves.
While the fortress labored to build a massive Rhyolite Aqueduct and an inverted pyramid dedicated to mighty Armok, Rith and Bim sat in their bedroom and screwed. Their pets and children remained in the bedroom or adjecent office and dining room at nearly all times, as I couldn't find enough work for all 50+ dwarves due to the proficiency of my crafters and due to small-active-area construction projects such as 2-wide floor bridges.
Before the year's end, Rith had another set of triplets. Her children now swarmed haphazardly around the fortress when they weren't watching their parents 'Work'. Surely, this dwarf could not possibly have any more kids after squirting out 6 dwarves like toothpaste within 9 months.
Sure enough, however, the following year Rith had a third set of triplets, bringing her family up to 12 Dwarves and some 25+ pets (mostly cats and kittens).
In about 10 years when her kids finish growing up, this fortress will officially belong to Rith and her family, as they will make up a sizable chunk of the population, and presumably they will all continue to reproduce as I have not capped babies or children (despite a population cap of 65, I have 82 dwarves now).
Childbearing doesn't earn a dwarf titles, but since 100% of these kids are going to become soldiers when they grow up, Rith is a military champion in her own right. I gave her a title myself.