Two short stacks push, what do you do in BB?

Party 10+1 NL
Blinds 150/300
Total number of players : 5

Seat 2: (1310)
Seat 4: (2599)
Seat 6: Button (940)
Seat 8: SB (745)
Seat 9: Hero (BB) (2406)

Dealt to Hero [ Qs, 2h ]
Seat 2 folds.
Seat 4 folds.
Button raises (940) to 940
Button is all-In.
SB calls (595)
SB is all-In.

Hero?

The last ten hands or so have been nothing but an all-in blind stealing fest. Both the button and SB are average Party 10+1 players and are loose with betting and calling standards. I figured SB was going to call with a wide range of hands because of his low stack. Since I am in the BB and have contributed 300 chips already, it takes 640 more for me to call a pot of 1985. Is this a strict pot odds situation that demands a call or do you fold this?

Thanks in advance

MisterW