BB free play: K7s - TP but wrong suit?

[TheOffice]

SB unknown
CO 41/9/1.2

2nd orbit or so at this table. I've played with CO quite a bit and usually his raises mean something.

Limit: $3/$6
5 players
Converter

Pre-flop: (5 players) Hero is BB with 7[img]/images/graemlins/diamond.gif[/img] K[img]/images/graemlins/diamond.gif[/img]
UTG folds, CO calls, Button folds, SB calls, Hero checks.

Flop: 6[img]/images/graemlins/heart.gif[/img] 7[img]/images/graemlins/heart.gif[/img] 2[img]/images/graemlins/club.gif[/img] (3SB, 3 players)
<font color="#cc0000">SB bets</font>, <font color="#cc0000">Hero raises</font>, <font color="#cc0000">CO 3-bets</font>, SB calls, Hero calls.

Turn: A[img]/images/graemlins/heart.gif[/img] (6BB, 3 players)
SB checks, Hero checks, <font color="#cc0000">CO bets</font>, SB calls, Hero folds.

River: T[img]/images/graemlins/club.gif[/img] (8BB, 2 players)
SB checks, <font color="#cc0000">CO bets</font>, SB calls.

Results:
Final pot: 10BB

I give up on the turn due to the A falling, flush completing any possibly being behind already on the flop?!

[sharpie]

I'd play it the same.