14 outs on the turn, raise?

[Julio]

I've been told to be more aggressive when I have lots of outs in a big pot. I'm not sure if I applied this concept properly in this situation though, help please.

Poker Stars
Limit Holdem Ring game
Limit: $0.02/$0.04
5 players
Converter

Pre-flop: (5 players) Hero is CO with 8[img]/images/graemlins/club.gif[/img] 7[img]/images/graemlins/club.gif[/img]
UTG folds, Hero calls, Button calls, SB calls, BB checks.

Flop: 6[img]/images/graemlins/spade.gif[/img] 8[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img] (4SB, 4 players)
<font color="#cc0000">SB bets</font>, BB calls, Hero calls, <font color="#cc0000">Button raises</font>, SB calls, BB calls, Hero calls.

Turn: 6[img]/images/graemlins/club.gif[/img] (6BB, 4 players)
<font color="#cc0000">SB bets</font>, BB calls, <font color="#cc0000">Hero raises</font>, Button calls, <font color="#cc0000">SB 3-bets</font>, BB calls, Hero calls, Button calls.

River: K[img]/images/graemlins/diamond.gif[/img] (18BB, 4 players)
SB checks, <font color="#cc0000">BB bets</font>, Hero folds, <font color="#cc0000">Button raises</font>, SB folds, BB calls.

Final pot: 22BB