Is this an ok line with AAxx ds from the SB?

[roggles]

Obviously this screams aces, but I manage to get a large chunk of the other players' chips in if they want to call. It feels a little bit donkish. What do you think? Obviously I don't want to do this every time I have AAxx in the SB.

Full Tilt Poker
Pot Limit Omaha Ring game
Blinds: $0.25/$0.50
6 players
Converter

Stack sizes:
UTG: $32.20
UTG+1: $20.35
CO: $43.85
Button: $49.25
roggles: $61.80
BB: $4.05

Pre-flop: (6 players) roggles is SB with A[img]/images/graemlins/club.gif[/img] A[img]/images/graemlins/diamond.gif[/img] J[img]/images/graemlins/diamond.gif[/img] 7[img]/images/graemlins/club.gif[/img]
UTG calls, UTG+1 calls, 2 folds, roggles calls, <font color="#cc0000">BB raises to $2.5</font>, UTG calls, UTG+1 calls, <font color="#cc0000">roggles raises to $12.75 ???</font>