Rivered flush, stack-a-donk raise or shove?

[Mike MacIntosh]

Do not remember much about villain. I have been running 15/12 at this table, so I decided to pop it pf w/ 65s in the CO.

Poker Stars, $0.50/$1 NL Hold'em Cash Game, 5 Players
LeggoPoker.com - Hand History Converter

BB: $121.50
UTG: $61.50
Hero (CO): $142.75
BTN: $206
SB: $100

Pre-Flop: 5[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/spade.gif[/img] dealt to Hero (CO)
2 folds, <font color="red">Hero raises to $4</font>, BTN folds, SB calls $3

Flop: ($8) 9[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/spade.gif[/img] Q[img]/images/graemlins/spade.gif[/img] (2 Players)
SB checks, <font color="red">Hero bets $6</font>, SB calls $6

Turn: ($20) J[img]/images/graemlins/club.gif[/img] (2 Players)
SB checks, Hero checks

River: ($20) 8[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">SB bets $14</font>, Hero makes it $42ish or shoves?