Desperately seeking new pairing

I have got it in my head that Ben/Claire!Cas (obviously, a few years down the line) would be all kinds of smoking hot. No idea why, but I very much wants me some this. No idea where to look or if there even IS any, but if anyone knows of some, please point me in the right direction.

Any reaction from Dean (happy!Dean, jealous!Dean, hands of my kid you creepy trenchcoated creeper!Dean, absent!Dean) is all good!