Just Another TPTK hand...AJ in SB

[Sweaburg]

Is my play here standard? Should I be c/r the flop? Leading out on the turn? What if the turn was a rag?

UTG+1 is a decent player pf but has been quite passive after.
I have no read on the button.

I think the K made it easy for me to get away from so I guess my main question is, if the turn had have brought, say, a 5c, should I lead out for a pot sized bet and fold to a raise?

Ultimate Bet No-Limit Hold'em, $1 BB (10 handed)

MP3 ($88.50)
CO ($18.25)
Button ($82)
Hero ($120)
BB ($73.75)
UTG ($75)
UTG+1 ($182.75)
UTG+2 ($55.50)
MP1 ($202)
MP2 ($76)

Preflop: Hero is SB with J[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/club.gif[/img].
UTG+1 calls $1, UTG+2 folds, MP1 folds, MP2 folds, MP3 calls $1, CO folds, Button calls $1, Hero completes, BB checks.

Flop: ($5) 4[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/diamond.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="blue">(6 players)</font>
<font color="CC3333">Hero bets $5</font>, BB folds, UTG+1 calls $5, MP3 folds, Button calls $5.

Turn: ($20) K[img]/images/graemlins/heart.gif[/img] <font color="blue">(4 players)</font>
Hero checks, UTG+1 checks, <font color="CC3333">Button bets $20</font>, Hero folds, UTG+1 calls $20.