Big pot played poorly

[Ruosteinen]

Full Tilt Poker
Pot Limit Omaha Ring game
Blinds: $0.05/$0.10
6 players
Converter

Stack sizes:
UTG: $12
Hero: $20.20
CO: $14.45
Button: $1.80
SB: $2.10
BB: $6.15

Pre-flop: (6 players) Hero is UTG+1 with Q[img]/images/graemlins/heart.gif[/img] J[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img]
<font color="#cc0000">UTG raises to $0.2</font>, <font color="#cc0000">Hero raises to $0.75</font>, CO calls, <font color="#cc0000">Button raises all-in $1.8</font>, 2 folds, UTG calls, Hero calls, CO calls.

Flop: 2[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/diamond.gif[/img] 2[img]/images/graemlins/spade.gif[/img] ($7.35, 3 players + 1 all-in - Main pot: $7.35)
UTG checks, Hero checks, <font color="#cc0000">CO bets $7.35</font>, UTG calls, Hero ?

Reads: CO is pretty aggressive and will always bet if no one looks interested. UTG is pretty solid.

Firstly I should be reraising this pf, right? I'm usually pretty aggressive when I've raised pf, but this is the first time I've been in a multiway pot of this size, so how should I play the flop? Newish player, go easy.