Should I be folding KK?

[bozlax]

[grunch]

Ugh. Your flop/turn line ees not goot. When BTN raises you, I put him on top pair, two-pair or overcards (least likely); you've got a couple of players trapped between you and a somewhat vulnerable hand on a coordinated board so you need to 3-bet the flop to get more dead money in and see what BTN has.

Regardless of what he does on the flop, when the turn pairs the board, I check/fold to him figuring he's either just made trips (AT or some such) or his boat (T9s, probably). It's a super-hard laydown, tho, especially against an unknown (any reads you didn't give us? like he's over-aggressive with 2nd pair top kicker?) in a big pot, so c/c'ing down isn't terrible, but betting out this turn is a bad move.

[/grunch]

[bozlax]

After re-examining the hand, folding the turn isn't right. You're going to see a 20+BB showdown, likely, and it'll cost you 2BB to do it as cheaply as possible...you're good here better than 1 in 10, I think, so call it down.