Correction. After looking at the children of my succubus, it looks her children have a variety of eye colors; however, the likelihood of purple eyes does seem to increase as she grows stronger.
I can say that most of her younger children have their mother's golden hair, although only 1 of her first 5 children did. Their hair colors are black, black, gold, black, light blond (but not gold), gold, gold, gold, platinum, gold, gold, gold, gold, gold. The more children she has, and the more stats she has, the more likely the children are to have her hair color.
For skin color, my succubus has very white skin, to reflect her ice-cold nature. Maybe 5 or 6 of her kids have the same skin color. The rest either have their dad's coloring, or a shade in-between both parents.
