when to take this pot if at all?

[jt1]

SB is 61/16/1.6 after 37 hands
Button is 46/6/.65 after 35 hands

I didn't know if either of these guys were flop peelers or not, but that was my main worry. Usually guys who see so many flops also like to take one off. Should I have at least bet the turn? On the other hand, they both seem well passive too. Perhaps I can hope to see a SD with my King high.

Party Poker 3/6 Hold'em (6 max, 4 handed) converter

Preflop: Hero is BB with 9[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">1 fold</font>, Button calls, SB completes, Hero checks.

Flop: (3 SB) 6[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, Button checks.

Turn: (1.50 BB) 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
SB checks, Hero checks, <font color="#CC3333">Button bets</font>, SB folds, Hero folds.

Final Pot: 2.50 BB