$10NL - 99 OOP on K-high flop, what's next?

[Markuzi]

I just came across this hand a few moments ago. I got dealt 99 and raise them from MP3 and get called by the CO.

No reads on CO, he sat down with about his current stack and has been on the table for 10 hands or so.

I haven't really played a hand in this session.. only took the blinds a few times with a PFR.

What is the right play in this hand?

Party Poker No-Limit Hold'em, $ BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

UTG+1 ($12.15)
MP1 ($1.70)
MP2 ($13.35)
<font color="#C00000">Hero ($9.90)</font>
<font color="#C00000">CO ($4.27)</font>
Button ($4.40)
SB ($4.75)
BB ($9.45)
UTG ($14.05)

Preflop: Hero is MP3 with 9[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/heart.gif[/img]. SB posts a blind of $0.05. UTG posts a blind of $0.10.
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises to $0.5</font>, CO calls $0.50, <font color="#666666">3 folds</font>.

Flop: ($1.15) 4[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $0.95</font>, CO calls $0.95.

Turn: ($3.05) 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $2.5</font>, CO calls $4.27 (All-In), Hero calls $0.32.

River: ($10.14) 3[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players, 1 all-in)</font>

Final Pot: $10.14

Results in white below: <font color="#FFFFFF">
BB doesn't show.
Hero has 9d 9h (two pair, nines and threes).
CO has Jh Js (two pair, jacks and threes).
Outcome: CO wins $8.69. Hero wins $1.45. </font>