If Claire were to ship Cas and Dean together, I think she would first do so in a manner of attack. She would be perceptive enough to realize that the fastest way to make Dean shut up would be to bring up Castiel in a romantic manner. However as time goes, she begins to notice things- the way they look at each other when the other's not watching, the way they touch, the way they light up. She becomes mad with herself cuz she just want those idiots to confess but is it a betrayal to her dad?
Heh, yeah, I’m not so onboard with Claire just making massive heart eyes at them together because it’s weird but I’m here for headcanons where she ends up being… not a shipper, exactly, but the next in the long line of people who see it and just want them to man up and kiss already so everyone can go back to the task at hand without all the UST. :P
