Prius V + 2 kayaks on roof?
 

I have an Outback I am able to get up on the roof of my Prius V. It works well enough. My son wants to head out on trips also, but I am trying to figure out how to deal with two kayaks on a roof. Getting a kayak up there is easy enough, two would be no problem, I am just wondering how people take care of this. (Special rack, simply side by side, other arrangement)

Hull-a-port PRO from Thule.
https://www.youtube.com/watch?v=-eowRheQoRw

I would like to see a Prius with a lumber rack straight welded to the roof!