25nl KK, too passive?

[Das Budrick]

villain is unknown
I bet pot on the flop, and when the flush card came I intended to c/c. On the river I was hoping he would take a stab at it. Should I be betting the turn/river? I am especially curious about the best river play


Full Tilt No-Limit Hold'em, $0.25 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

saw flop|<font color="#C00000">saw showdown</font>

UTG ($9.90)
UTG+1 ($25)
<font color="#C00000">Hero ($25.95)</font>
MP2 ($23.45)
<font color="#C00000">MP3 ($32.50)</font>
CO ($25)
Button ($9)
SB ($30.10)
BB ($25.40)

Preflop: Hero is MP1 with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, <font color="#CC3333">Hero raises to $1.1</font>, <font color="#666666">1 fold</font>, MP3 calls $1.10, <font color="#666666">4 folds</font>.

Flop: ($2.55) 3[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $2.8</font>, MP3 calls $2.80.

Turn: ($8.15) 3[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, MP3 checks.

River: ($8.15) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, MP3 checks.

Final Pot: $8.15

[CalledDownLight]

Bet either the turn or river. I bet the turn for protection against another diamond. Something like $5.5 looks good to me.

[sakrei]

dude bet that turn man,

[RyanCMU]

Fire turn