Party Poker No-Limit Hold'em, $0.5 BB (10 handed)

MP2 ($30.7)
Hero ($43.4)
CO ($13.9)
Button ($25.9)
SB ($24)
BB ($28.25)
UTG ($8.75)
UTG+1 ($8.2)
UTG+2 ($73.35)
MP1 ($13.15)

Preflop: Hero is MP3 with , .
UTG folds, UTG+1 folds, UTG+2 folds, MP1 folds, MP2 calls $0.50, Hero calls $0.50, CO calls $0.50, Button calls $0.50, SB completes, BB checks.

Flop: ($3) , , (6 players)
SB checks, BB checks, MP2 checks, Hero bets $2, CO folds, Button folds, SB calls $2, BB folds, MP2 folds.

Turn: ($7) (2 players)
SB checks, Hero bets $4, SB calls $4.

River: ($15) (2 players)
SB bets $17.5 (All-In), Hero folds.

Final Pot: $32.50

Ok, I flopped the nut straight on a suited board with the King of the suit. The last bet seems like a buy, but what else would he be calling with other than the ? He probably thought I would call the end thinking split, or who knows? Comments?

I call

He could've had the Q for the open-ended draw. I don't know if I would call or not.

opponent specific. That's nl for you!

I think i'm used to Omaha where someone always seems to have the nuts. I probably should have called but this is a perfect bluff situation and perfect situation if he had the that I could see it as a bluff and he gets paid.

I later tried to get someone to do the same thing when I hit my ace high flush on a 4 flush board. Unfortunately, he only had 2 pair so didn't call, but he would have called with the flush so I think its a good move.