This is my first generation sim Hannah

and this is Hannah's nephew Setto

These are sims from the same family. This is a 3rd generation sim, Keke

3rd generation Rocses, Jasmin, and Jade

2nd generation Nasu

and 1st generation Heroy

Can anyone help me? I noticed a little while ago that when I have a couple that has on partner being the lightest of skin tones and the other being the darkest  of skin tones, the children come out mostly the darkest skin tone and occasionally the lightest one, but never the in between colors. What is up with this?? @.@ I can  only have the children be the in between colors in  the build a family mode, but like I said once there in the neighborhood the kids come out either or , no in between.

Please help me,:sad3: