I know a gifted female Aspie who played imaginative games with younger playmates. She followed their lead when it came to inventing interactions between the characters, but contributed a lot of imagination and creativity to building the worlds those characters inhabited.
When she was four, she would respond to puppets as if they were real. I don't think that was an indication that she was participating in the imaginary play, though. It was more like she took the puppets literally, and to her they *were* real.
