Bet the turn?

[dozer]

The players at this table are all pretty loose and passive, and plays straight forward, so they are not tricky.

Party Poker 2/4 Hold'em (8 handed) converter

Preflop: Hero is UTG+1 with T[img]/images/graemlins/club.gif[/img], T[img]/images/graemlins/heart.gif[/img]. MP2 posts a blind of $2.
UTG calls, <font color="#CC3333">Hero raises</font>, <font color="#666666">2 folds</font>, <font color="#CC3333">CO 3-bets</font>, Button calls, SB calls, BB calls, UTG calls, Hero calls.

Flop: (19 SB) A[img]/images/graemlins/heart.gif[/img], 6[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, BB checks, UTG checks, Hero checks, CO checks, Button checks.

Turn: (9.50 BB) 4[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(6 players)</font>
SB checks, BB checks, UTG checks, <font color="#CC3333">Hero...

is betting the turn after no one has shown aggression on the flop okay here?