A hand for review please

[Sidekick]

PokerStars 0.25/0.50 Hold'em (9 handed)

I haven't been at this table long. Started at BB and it had gotten around to me being CO, so no real reads on most of the other players. From my notes I know that UTG and MP3 are solid players.

Preflop: Hero is CO with K[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/club.gif[/img].
UTG folds, UTG+1 folds, MP1 calls, MP2 folds, MP3 folds, Hero calls, Button calls, SB completes, BB checks.

Flop: (5 SB) K[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/spade.gif[/img] <font color="blue">(5 players)</font>
<font color="CC3333">SB bets</font>, BB calls, MP1 folds, Hero calls, Button folds.

I didn't raise after the flop, because I was afraid that I would cause the other players to fold.

Turn: (4 BB) 4[img]/images/graemlins/spade.gif[/img] <font color="blue">(3 players)</font>
<font color="CC3333">SB bets</font>, BB calls, <font color="CC3333">Hero raises</font>, SB calls, BB calls.

River: (10 BB) 7[img]/images/graemlins/spade.gif[/img] <font color="blue">(3 players)</font>
SB checks, BB checks, Hero checks.

I was thinking if one of them was drawing to the flush that I didn't want them raising over the top of me, so I just checked here. Is this a case of seeing monsters under the bed?

Final Pot: 10 BB

All comments are greatly appreciated.