Reraise 5th with Kings-up?

[nef]

$3/$6, $0.50 ante, $1 bring-in, 6 handed.

I am dealt (6s Kc) Ks.
The bring-in is on my left with the 2s. Js folds, Qh folds, Qc folds, Td folds, I raise the bring-in. He calls.

4th
(6s Kc) Ks 6c BET
XX 2s 5c CALL

5th
(6s Kc) Ks 6c 9h BET
XX 2s 5c 7d RAISE

Call or reraise. I thought he might have only 7's up or 5's up to raise here, because I looked like a steal on 3rd. Also at this point I had a loose and very aggressive image because of how some hands have played. I reraised. Comments?

He caught a ten on sixth, I caught a 2. Making his hand slightly more dead. I bet and he called. On the river I caught an Ace so I still have kings up. I bet and he raised... Call or Fold? Is this a laydown I can make? I doubt he's bluffing.