bottom set K high board, Q on river v PFR

[TheWorstPlayer]

Villain is bluffraiser. Seems like an unremarkable TAG, probably one of you guys.
Bet/call push (bet how much)? c/r? c/c? I assume no one ever folds, right?

Poker Stars
No Limit Holdem Ring game
Blinds: $3/$6
6 players
Converter

Stack sizes:
UTG: $184.70
UTG+1: $615
CO: $1795.15
Button: $600
TWP: $648.45
BB: $558

Pre-flop: (6 players) TWP is SB with 2[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/heart.gif[/img]
2 folds, <font color="#cc0000">CO raises to $18</font>, Button folds, TWP calls, BB folds.

Flop: 2[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img] ($42, 2 players)
TWP checks, <font color="#cc0000">CO bets $24</font>, TWP calls.

Turn: 3[img]/images/graemlins/spade.gif[/img] ($90, 2 players)
<font color="#cc0000">TWP bets $57</font>, CO calls.

River: Q[img]/images/graemlins/spade.gif[/img] ($204, 2 players)
TWP...?