3rd generation, had a couple that were "perfect match" (same career) and both wanted kids.

I had bought a pet cat, and there was one 10-year-old child named "Bam" in the house.

I send my couple to go make a baby, and the cat is already sleeping on the bed. My peeps don't care. While they're doing their making-a-baby ritual up on the bed, Bam comes in and jumps on the bed. So everyone in the house (both parents, child, and pet) is all on the bed...

And I got my first twins!

I just found that incredibly funny