Is it possible to network two MacBook Pro's together without a router? I have demo that I want to conduct and it requires two computers, the place where I am doing the demo will not have a router available for said demo. 

Is it possible to configure two MacBook Pro's to communicate with each other directly over wifi without having a router involved?
On one - click the Wi-Fi symbol in the menu bar and create a network.

On the other - join that network.

This is covered in detail in the Mac help under "Create a computer-to-computer network". You can also just connect them with Ethernet, FireWire but Wi-Fi is faster to set up and tear down.