I don't slowplay with these hands. Yes they are monsters but they're still only pocket pairs and can be overtaken postflop if the board goes bad. In Early position and first in, I open the same amount as I do with any other hand. I make sure not to deviate from my normal betting patterns and strategy to conceal the strength of my hand. If I get 3Bet, then I will 4Bet for value, (Typically 2-2.5x) hoping for a call or a 5Bet shove. If I'm in Late position with these hands and facing an EP open, I will 3Bet them 3-3.5x, adding an extra 1x for any callers in the hand. I do this for two reasons, to protect my Kings or Aces from drawing hands and start building a big pot. If I get 4Bet, then I'm 5Bet shoving every time. I don't slowplay with these hands. If we get to the flop then I will continue OOP as normal on dry/safe flops, and likewise will flat call any donk bets in position and see what the turn brings. On wet boards, I proceed with caution. Facing a bet, I will generally re-raise pot on a dangerous board to deny draws the correct
odds to continue, and force them to reveal their hand strength. If the turn is any dangerous looking card then I will bet big again. If they then come over the top then I will consider a fold. I will not fold if it is a player who I have read as being capable of huge postflop bluffs. If I know they are a good player who is reading board textures, and they know how I am reacting to certain cards, then I will be less likely to fold my Kings/Aces and will probably move in. This is because I know there is a higher chance that they are
bluffing. But if it's a player who I know plays very straight forward and gets active when they're strong and almost never bluffs, then a big laydown might be in order. The most critical factor with KK+ is knowing your opponents. These hands are huge monsters. Play them very aggressively Preflop but proceed with caution Postflop if the board looks dangerous, and you're facing heavy action.