My kids have active imaginations.

Portia and Margot have ongoing games that they play on a regular basis. 

One is "Kitties," where they both crawl around on the floor meowing. Another is "Babies," where they crawl around on the floor crying. 

But my favorite is "Supergirls." Each girl has a superpower, and a cool superhero name. Portia is Snowflaka, and has the power of shooting snowflakes out of her hands. She can also run really fast. Margot is Powera, and can run really fast as well, and can shoot red power stuff out of her hands. I'm not 100% clear on what that means.
I think Snowflaka and Powera are sisters, and go to school, but they do not take naps.

They are so cool.