NL600 Facing Blocking Bet on River

[JReezy]

Villain in this hand was playing very loose and passively both preflop and postflop. I had not gotten into any real hands with him yet. I had seen him call a few flop bets from the preflop raiser and fold to further betting. Turn might not be a great card to double barrell, but I put him on a mid pocket pair or a flush draw and was intending on firing 3 barrells if the the flush missed. What do you think of his river bet? Who likes raising over it?

Full Tilt Poker - No Limit Hold'em Cash Game - $3/$6 Blinds - 5 Players - (LegoPoker HH Converter)

SB: $349.00
BB: $510.45
UTG: $1,847.85
CO: $591.00
Hero (BTN): $1,351.15

Preflop: Hero is dealt 8[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/spade.gif[/img] (5 Players)
UTG calls $6.00, CO folds, <font color="red">Hero raises to $27.00</font>, 2 folds, UTG calls $21.00

Flop: ($63) K[img]/images/graemlins/diamond.gif[/img] 2[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/heart.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $38.00</font>, UTG calls $38.00

Turn: ($139) 4[img]/images/graemlins/club.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $118.00</font>, UTG calls $118.00

River: ($375) 4[img]/images/graemlins/heart.gif[/img] (2 Players)
<font color="red">UTG bets $60.00</font>...