To call down or not with weak top pair hand?

[Skuzzy]

Got a free play here in the blind. Villain is 50/2/0.6 so a big time calling station. I felt like I was protectiing my weak hand with a flop bet here, but the turn card slowed me up and I went into call down mode. Is this standard?

NB: I play limit as a distraction when I run bad in NL so my knowledge is less than most micro posters. I posted the 3/6 hand here because the question seems too basic for SS, is that reasonable?

Party Poker 3/6 Hold'em (10 handed) FTR converter on zerodivide.cx

Preflop: Hero is BB with K[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/club.gif[/img].
<font color="#666666">4 folds</font>, MP2 calls, <font color="#666666">4 folds</font>, Hero checks.

Flop: (2.33 SB) 7[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, MP2 calls.

Turn: (2.16 BB) Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP2 bets</font>, Hero calls.

River: (4.16 BB) Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">MP2 bets</font>, Hero calls.

Final Pot: 6.16 BB

Results in white below: <font color="#FFFFFF">
Hero has Ks 6c (two pair, kings and queens).
MP2 has Jc As (straight, ace high).
Outcome: MP2 wins 6.16 BB. </font>