This is pretty much a typical evening at my house. If you sit on the floor, it's an invitation to be "pounced on".
To entertain my "monkees", sometimes we'll break out the camera and take some photos. This particular session seemed to degenerate into a wrestling match.
Technique:
Ironically, this was pretty bright day, but the key lighting was lit with my onboard flash bounced off the ceiling overhead and a wireless flash (sitting beside the TV) with an omnibounce diffuser on it.
This image and others in this series is available on istockphoto.com.