Chip spewing with aces?

[coinflip]

Just recently sat down at table, so no good reads. What's my action when I get raised on the turn? Call it down? Raise? Fold? This seems to be such an obvious place to bluff a scare card ...

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

Preflop: Hero is UTG+1 with A[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img].
<font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, MP2 calls, <font color="#666666">1 fold</font>, Button calls, <font color="#666666">2 folds</font>.

Flop: (7.50 SB) 8[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, MP2 calls, Button folds.

Turn: (4.75 BB) 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">MP2 raises</font>, Hero ...