Are twins hereditary in sims?

Personally, I feel like it is hereditary. I had a sim marry a woman who had a twin sister. She gave birth to twins. Those twins grew up and only one of them got involved in a relationship with single NPC with no relatives. That woman gave birth to twins, too. That set of twins hasn't hit maturity yet in my game, so I don't know if the pattern will continue. But so far, that's three generations of twins.

I’ve never had twins on my own in the game. It’s so frustrating lol.

Well since it’s fraternal twins, like in real life, fraternal twins are actually hereditary. Identical twins are not.

It doesn't seem to be in my game. In fact, multiples are quite rare in my saves all-together. I've had 2 sets of twins in my game total (across all saves) since I started playing in 2014 or 2015. Don't know exactly when I started playing but it was a month or two after the game launched.

I know it was in Sims 2, but I have no idea if it actually is in TS4 or not.

"JC1979;c-16739478" wrote:
Well since it’s fraternal twins, like in real life, fraternal twins are actually hereditary. Identical twins are not.

Whooaa! Cool info! This actually explains a lot. The story I described is all fraternal twins. I have one other set of twins who were identical and the one who got married had only one baby so far, bur it was a single baby! That would be a really cool attention to detail if they programmed it that fact in mind!

"JC1979;c-16739478" wrote:
Well since it’s fraternal twins, like in real life, fraternal twins are actually hereditary. Identical twins are not.

I am a fraternal twin and I can attest to that. Twins skip generations in my family. My grandma is a twin then I am a twin. Very likely either my children or my brothers children will give birth to twins! It would be SO cool if Sims was like real life. Ive never been lucky to have multiples yet in the Sims but I am trying!

I feel as though it probably is hereditary because quite a while back I had a game in which my sim had twins, and then on of them had twins, and then one of their twins had twins. It was only ever one of the twins that would have twins, however I found it to be consistent with each generation. Haven't actually had another set of twins since, so unable to tell if it was just something with that save or not.

My first sim, Lucy, had 6 kids, ALL twins, I had to start a new game before I lost my mind lol Looking after kids at different ages was a nightmare so after the first pair of twins, Charlie and Benjamin aged up to children, I skipped most of the toddler stages for Jack, Roxy, Patty and Tomas. Because Roxy and Jack just loved having temper tantrums and starving themselves, wee pests lol My new sim, Luna Moonman, (yes, I've based her on Luna from Harry Potter lol), is, atm, a crazy cat lady. She has 4 cats, Mirrin (mum), Halo (dad), Neo (boy/kitten) and Rascal (boy/kitten). I still play with Lucy and her mad house of kids though. So if any of Lucy's kids have kids, they'll probably have twins lol

I'm not sure if it's programmed to be hereditary, but I have one save file that loves twins. It was my first S4 save file in fact, and my first ever birth in the game. The couple ended up with twins for both pregnancies, then one of their twins himself had his own twins.

I think it might just be my game though, because I get twins more often without any intervention from me.