AK bluff

[smizmiatch]

Villain is loose-passive.
I bet out this flop thinking that I likely have the best hand, I may win it right there and I'll buy some outs.
I decide to continue with the same line on the turn, hoping for a fold.
On the river, should I fire one more time? And if I check, should I be prepared to call a bet with just A high?
Thanks.

Party Poker 3/6 Hold'em (6 handed) converter

Preflop: Hero is BB with A[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/spade.gif[/img]. MP posts a blind of $3.
UTG calls, MP (poster) checks, <font color="#666666">2 folds</font>, SB completes, <font color="#CC3333">Hero raises</font>, UTG calls, MP calls, SB calls.

Flop: (8 SB) 6[img]/images/graemlins/club.gif[/img], 3[img]/images/graemlins/diamond.gif[/img], 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
SB checks, <font color="#CC3333">Hero bets</font>, UTG folds, MP calls, SB folds.

Turn: (5 BB) J[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, MP calls.

Final Pot: 7 BB