11s Badly played flop?

[sanmarcosrun1]

The flop bet seemed like somone trying to price themselves into their draw or someone trying to protect a pair of queens. Overlooked CO but can I get away from this even if I reraise smaller amount? How bad is my play here? Please be brutal!!

Full Tilt Poker
No Limit Holdem Tournament
Blinds: t15/t30
9 players
Converter

Stack sizes:
UTG: t1500
UTG+1: t1500
MP1: t1785
MP2: t1440
hero: t1665
CO: t1485
Button: t1365
SB: t1380
BB: t1380

Pre-flop: (9 players) hero is MP3 with :ks :kh
4 folds, [color=#cc0000]hero raises to t120</font>, CO calls t120 [color=#aaaaaa](pot was t165)</font>, Button folds, SB calls t105 [color=#aaaaaa](pot was t285)</font>, BB calls t90 [color=#aaaaaa](pot was t390)</font>.

Flop: :5c :ts :qs (t480, 4 players)
[color=#cc0000]SB bets t480</font>, BB folds, [color=#cc0000]hero raises all-in t1545</font>, [color=#cc0000]CO calls all-in t1365</font>, SB folds.
Uncalled bets: t180 returned to hero.

Turn: :7d (t3690, 0 player + 2 all-in - Main pot: t3690)


River: :4d (t3690, 0 player + 2 all-in - Main pot: t3690)


Results:
Final pot: t3690

[AMT]

brutally fine, IMO

[TravestyFund]

I miss San Marcos bitches

[Insty]

I'd play exactly the same.
Although I'd probably correct the hand converter output to make sure the HH was readable.