River makes my flush, but also pairs the board

[Kyriefurro]

Only 14 hands on Button, so not much in the way of a read. From what little I've seen, though, he seems pretty aggressive. He's also been bragging about how he's mainly a MTT table and how well he does on those games, which may or may not be significant.

SB seems loose passive and hasn't done anything to catch my attention yet.

Stacks:
Hero - 54.10
Button - 61.33
SB - 6.50

Prima .25/.50 NL 6-max <font color="blue"> (4 players) </font>
Hero is in BB w/ 8 [img]/images/graemlins/spade.gif[/img], 7 [img]/images/graemlins/spade.gif[/img]

Preflop: UTG folds, Button <font color="red"> raises to $1.50 </font>, SB calls, Hero calls

($4.50) Flop <font color="blue"> (3 players) </font>: 4 [img]/images/graemlins/spade.gif[/img], 3 [img]/images/graemlins/club.gif[/img], J [img]/images/graemlins/spade.gif[/img]
SB checks, Hero checks, Button checks

($4.50) Turn: 6 [img]/images/graemlins/heart.gif[/img]
SB bets $0.50, Hero calls, Button <font color="red"> raises to $3.50 </font>, SB <font color="red"> raises to $5 (all-in) </font>, Hero calls, Button calls

<font color="green"> At this point I'm thinking that either SB or button caught the straight. If I catch my flush, I'm probably good and I have a gutshot to a bigger straight than what's out there, so I have 12 full outs. I'm getting exactly 3:1 to call SB's 3-bet, so a call is justified. </font>

($19.50) River <font color="blue"> (3 players, 1 all-in) </font>: 6 [img]/images/graemlins/spade.gif[/img]
Hero bets $15, Button <font color="red"> raises to 54.83 (all-in) </font>, Hero.......?