what do you think about actually havin a dragon as a companion now? I think that is goin to be sweet

Can we marry a dragon?

ok all i am goin to say to that is OUCH

Per Todd's interview you can't actually have a dragon as a companion that will follow you but you can use a shout to call upon a dragon (that you have befriended in the MQ) to fight by your side. Once the enemies are defeated he will be gone until you use the shout again.

Still very cool.

I hear that there's a cut scene that plays the entirety of "How to Train Your Dragon" before you can use said companion. If you try and skip it, the dragon turns on you.