River card makes me vomit in my mouth, plan of action?

[redrooski24]

After villain calls my 3 bet I put him on 9x or some kind of middle PP. With no turn raise, I discounted K9 and a set. On this river, what should be the general plan? No read on villain unfortunately.

PokerStars 3/6 Hold'em (8 handed) converter

Preflop: Hero is SB with J[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/spade.gif[/img].
UTG calls, <font color="#666666">5 folds</font>, <font color="#CC3333">Hero raises</font>, BB calls, UTG calls.

Flop: (6 SB) 4[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, BB folds, <font color="#CC3333">UTG raises</font>, <font color="#CC3333">Hero 3-bets</font>, UTG calls.

Turn: (6 BB) K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, UTG calls.

River: (8 BB) 9[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero vomits and...