Why are they so ugly?

I've been playing sims2 for a while now and I just need to know- why are the kids so ugly??

I make a good-looking couple in sims2, they move into a nice neighbourhood, meet some neighbours, have a good time. Then they have a baby. What could go wrong? surely will be a super cute baby, right? 

WRONG.

These babies come out as the ugliest little hobbits anyone could ever dream up. Seriously, these things look like an idea for Stephen kings' new horror novel.

Their nose is either massive or non-existent, lips either thicker than their whole face or thinner than Graphene, their cheeks, rounder than the moon or skinnier than a skeleton with a thin layer of skin on. I try to do things to fix it, different hair, makeup even some simPE, but I really want a way for them to come out naturally not looking like a blobfish. It just gets repetitive and kind of ruins the gameplay.

If anyone has any suggestions on how to make these babies come out looking like they actually belong to the mother and father, please tell me.

Also, if it helps- I'm playing with the seasons and apartment life expansion pack.