You can find numerous very simple pretend and dress up games for girls in the Internet. But there are other games based more along a storyline. For example, you might be able to pretend you are a fairy godmother or a princess. There are all sorts of fairy tale adaptations that it never gets old. At times these stories can even be based on a doll house where you can move and arrange many of the aspects to the house. It can be a dream house that you design.
Besides makeup and fashion, girls always like music. They enjoy singing and dancing and pretending they are in the band. There are games based on this as well, and they allow you to play instruments and make songs along with other aspects of the music business. You might even be able to design the members of the band, and that can be very fun. As these games are almost always driven by Flash, they are more often than not free games. This makes hours of fun game playing possible as you can switch from one game to another without having to pay. These games are so broad in their interest that you should certainly take time to get to know them.