passive KK 400 nl

I was wary of a number of hands that had me beat, and figured there was no real scare cards. So I just check-called the whole way.. G00t line?

SB is bkrtfm, typical TAG player seen at 400 nl.

Party Poker No-Limit Hold'em, $ BB (9 handed) FTR converter on zerodivide.cx

MP1 ($639.07)
MP2 ($396)
MP3 ($509.86)
CO ($29)
Button ($211.70)
SB ($396)
BB ($722.60)
Hero ($464)
UTG+1 ($207.65)

Preflop: Hero is UTG with K:spade:, K:diamond:. SB posts a blind of $2.
Hero calls $4, 1 fold, MP1 calls $4, 2 folds, CO calls $4, 1 fold, SB (poster) raises to $23, 1 fold, Hero calls $21, MP1 folds, CO folds.

Flop: ($62) Q:spade:, T:spade:, 5:spade: (2 players)
SB checks, Hero checks.

Turn: ($62) Q:heart: (2 players)
SB bets $40, Hero calls $40.

River: ($142) 6:club: (2 players)
SB checks, Hero checks.

Final Pot: $142

Results in white below:
SB has Ac Ah (two pair, aces and queens).
Hero has Ks Kd (two pair, kings and queens).
Outcome: SB wins $142.