NL200 - flush, paired board, fish shoves river

[fees]

i call here, i more often see hands turned into bluffs here than actual value bets.. in fact i have a hand to demonstrate: (same type of villian

Stack sizes:
UTG: $225.35
UTG+1: $567.45
hero: $197
Button: $117.20
SB: $193
BB: $202.75

Pre-flop: (6 players) hero is CO with A[img]/images/graemlins/spade.gif[/img] A[img]/images/graemlins/diamond.gif[/img]
UTG folds, UTG+1 calls, <font color="#cc0000">hero raises to $10</font>, 3 folds, UTG+1 calls.

Flop: 5[img]/images/graemlins/heart.gif[/img] 3[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/club.gif[/img] ($23, 2 players)
UTG+1 checks, <font color="#cc0000">hero bets $18</font>, UTG+1 calls.

Turn: 3[img]/images/graemlins/heart.gif[/img] ($59, 2 players)
UTG+1 checks, <font color="#cc0000">hero bets $45</font>, UTG+1 calls.

River: 6[img]/images/graemlins/diamond.gif[/img] ($149, 2 players)
<font color="#cc0000">UTG+1 bets $75</font>, hero calls.

Results:
Final pot: $299
UTG+1 shows Ah 4h