In which I have a flush - and I don't wanna call

[thac]

I have no idea what to do in all three streets here (flop is easy I guess). What's my optimal turn/river play here?

Poker Stars - No Limit Hold'em Cash Game - $0.50/$1 Blinds - 6 Players - (LegoPoker Hand History Converter)

SB: $46.75
BB: $142.40
UTG: $54.45
MP: $31.50
CO: $25.65
Hero (BTN): $210.65

Reads: <font color="blue">37/20, didn't sit with a full stack and has been here for around 50 hands.</font>

Preflop: Hero is dealt K[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/spade.gif[/img] (6 Players)
UTG calls $1.00, 2 folds, <font color="red">Hero raises to $5.00</font>, 2 folds, UTG calls $4.00

Flop: ($11.50) J[img]/images/graemlins/club.gif[/img] 3[img]/images/graemlins/spade.gif[/img] 2[img]/images/graemlins/spade.gif[/img] (2 Players)
UTG checks, <font color="red">Hero bets $9.00</font>, UTG calls $9.00

Turn: ($29.50) K[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">UTG bets $10.00</font>, Hero calls $10.00

River: ($49.50) T[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">UTG bets all-in for $30.45</font>