KK preflop

[Bonk]

This is really an amazing spot once you don't 4 bet.
First of all - UTG's stats are important and you didn't include them. Even a nit will open his button 3-bet range against a bad/too loose player.

Second - I'd check the flop and I would be really concerned if he actually checks the flop instead of betting because he probably won't bet this flop with aces because he hates it too, and might slow-down with trips or better.

If he bets out on the flop I think I'd call and b/f turn big. If he calls then shoving river might fold AA here, and anything better probably pushes turn anyway.

Anyway - I don't think c/f holding here is the right thing to do.