Just wait until that girlfriend becomes a wife. then you'll sympathize.
No, Flash will not run on the iPad.
Plus, if it were an OS X device, you could just pull movie files over the network for when you're sitting in the bathroom.
Now? You'd have to have your porn loaded directly on to the device. Who wants to have to carry porn around when everyone is going to want to play with your iPad.
Let's face it, it's a huge fail as an adult entertainment delivery device. Guess we'll just have to stick to the MBP 13" eh?