[jesse8888]

I think a raise might protect your hand against someone holding a lone ace, and thats why I would have been inclined to do it. Once I got check/3-bet (if that happened), I'd have called all bets on the flop and seen what the turn brought.

If I'm counting this up correctly, there are around 30 small bets in the pot and it's two more to you to call. You don't quite have odds to call for just the 2 kings, but the running spades help so I can't see possibly folding. Making it 4 bets seems bad as well, so I'd just call.