NFD folded on turn?

[Yentz]

Cryptologic 500NL, 6max

The game is 5 handed. Odly enough UTG and UTG+1 limp, BTN fold, and since BB is very passive and deep I make a debatable call with K [img]/images/graemlins/diamond.gif[/img] 8 [img]/images/graemlins/diamond.gif[/img] with 1100 behind.

BB checks as expected.

FLOP ($20):
Q[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/diamond.gif[/img] 6[img]/images/graemlins/diamond.gif[/img]

I bet $15, two folds, UTG+1 ($500) makes it $55. He is a good TAG regular (Kick_nutz for those who play these games).

I was obviously considering 3betting, but elected to call, since I figured a push or 3bet would look a lot like a draw and have little FE, and because the pot is so small.
How bad is that - Do you guys always 3bet here?

Turn: ($130) 5 [img]/images/graemlins/spade.gif[/img]
I check (?), he bets $89.
Do you raise or fold, or maybe lead turn?

I guess the reason I am confused is because I almost never end up in this spot since I would almost always fold or 3bet the flop - maybe that answers my question :-)