AJ on the flop
 

Should I have bet this on the flop?

Party Poker 0.50/1 Hold'em (10 handed)

Preflop: Hero is MP3 with A[img]/images/graemlins/heart.gif[/img], J[img]/images/graemlins/heart.gif[/img].
UTG folds, UTG+1 folds, UTG+2 calls, MP1 folds, MP2 folds, <font color="CC3333">Hero raises</font>, CO folds, Button calls, SB calls, BB folds, UTG+2 calls.

Flop: (9 SB) 4[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/spade.gif[/img] <font color="blue">(4 players)</font>
SB checks, UTG+2 checks, Hero checks, Button checks.

Turn: (4.50 BB) A[img]/images/graemlins/club.gif[/img] <font color="blue">(4 players)</font>
SB checks, UTG+2 checks, <font color="CC3333">Hero bets</font>, Button calls, SB folds, UTG+2 folds.

River: (6.50 BB) 3[img]/images/graemlins/diamond.gif[/img] <font color="blue">(2 players)</font>
<font color="CC3333">Hero bets</font>, <font color="CC3333">Button raises</font>, Hero calls.

Final Pot: 10.50 BB

Re: AJ on the flop
 

Short answer, yes.