400NL flush on two pair board - bet river?

[Vinetou]

PokerStars No-Limit Hold'em, $4 BB (2 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Hero ($703.40)
Button ($781.50)

Preflop: Hero is BB with K[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/club.gif[/img].
<font color="#CC3333">Button raises to $12</font>, Hero calls $8.

Flop: ($24) 2[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/club.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets $16</font>, <font color="#CC3333">Hero raises to $60</font>, Button calls $44.

Turn: ($144) 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $128</font>, Button calls $128.

River: ($400) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $232</font>,

Is this a reckless bet on the river? He is paying me off a lot here, with any overpair, 9, of course hands that he beats me with. I c/r the flop because this is almost my default play with a draw. Plus I figured that if he has a pair, he won't reraise me, so I will put money in when being the favorite, will win a big pot if a flush comes - however, I am sure semibluff here was good. River bet is my only consideration. Villain has a little calling station tendencies against me.