Villian is new to the table.

Party Poker
Pot Limit Omaha Ring game
Blinds: $0.50/$1
8 players


Stack sizes:
UTG: $182.42
UTG+1: $196.56
MP1: $262.10
MP2: $299.17
Hero: $135.20
Button: $98.50
SB: $30.52
BB: $116.30

Pre-flop: (8 players) Hero is CO with
3 folds, MP2 calls, Hero calls, Button calls, SB calls, BB checks.

Flop: ($5, 5 players)
SB checks, BB checks, MP2 checks, Hero bets $4.75, Button calls, 3 folds.

Turn: ($14.5, 2 players)
Hero bets $13.8, Button calls.

River: ($42.1, 2 players)
Hero checks, Button bets $40, Hero calls.

like my line? prefer a blocking bet on the river?

--- edit

Replied in wrong thread

Oh man, I hate when that happens...

I do think you should call it because the two most likely draws (KQJ and the heart flush) didn't get there so there's a reasonable chance he's bluffing.

I prefer your line to a blocking bet. Against a passive I like a block bet, against an aggressive I prefer checking.