Elle rolled over!!!

I could not believe my eyes!!! I laid her and Will on their bellies for some tummy time, walked into the kitchen for 2 seconds and when I came back out into the living room, there she was on her back! That little stinker. So of course I had to see it for myself. I turned her back on her belly (3 more times) and each time she immediately turned to her back. She is only 3 months old! I see a VERY busy future! I am not ready for either of them to be even remotely mobile... Please God... let them be late movers!!