6-max: Confused by the donkbet.

[parappa]

Party 1/2 6-max. Villain is a bit loose, at 23% VPIP, though I don't have many hands. Haven't seen enough of his play to really know if he's aggressive or passive postflop. The table has been reasonably tight in the few orbits I've been here, so I thought my K9 was plenty to open with from the button.

Folded to hero on button. Hero raises with K[img]/images/graemlins/heart.gif[/img]9[img]/images/graemlins/spade.gif[/img]. Villain (SB) calls. BB folds.

(5 Small Bets, 2 players) Flop: K[img]/images/graemlins/club.gif[/img]J[img]/images/graemlins/club.gif[/img]6[img]/images/graemlins/diamond.gif[/img]

Villain checks, Hero bets, Villain calls.

(3.5 Big Bets, 2 players) Turn: A[img]/images/graemlins/heart.gif[/img]

Villain bets.

Now what?