Flop/Turn with ATs OTB

[Piiop]

Party 10/20 10-handed. Good table, good position.

Lineup:

UTG: Completely unknown.
UTG+1: Rock
UTG+2: A little too loose a little too aggressive player preflop and flop, but not very aggressive on the big streets.
MP1: LAG. Not very smart or tricky, just likes to bet and raise a lot.
MP2: Very loose very passive fish.
SB: Rock

Preflop: I have A [img]/images/graemlins/spade.gif[/img]T [img]/images/graemlins/spade.gif[/img] on the button. All those people limp to me, I raise, SB calls putting himself all-in, BB folds, they all call.

Flop (~13sb): A [img]/images/graemlins/club.gif[/img] Q [img]/images/graemlins/diamond.gif[/img] J [img]/images/graemlins/club.gif[/img]

UTG bets, UTG+1 folds, UTG+2 folds, LAG raises, Fish calls, I...?

What's my play here - 3-bet or call? If I call, what am I doing on the turn, card dependant? (Assume it will be checked to the LAG and he will bet if I just call the flop)

[thesharpie]

I just call, and probably call a blank turn when the LAG bets. You're not sure where you are, usually you're either drawing slim or they're drawing live.