Donked on turn by 2+2er

[CasqueNoir]

SB is the reason I'm in the game, 50/3/.3 or something with insane WTS of 55-60, BB is agressive TAG 2+2er.

Absolute Poker
Limit Holdem Ring game
Limit: $25/$50
5 players
Converter

Pre-flop: (5 players) Hero is UTG with 9[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/heart.gif[/img]
<font color="#cc0000">Hero raises</font>, 2 folds, SB calls, BB calls.

Flop: 6[img]/images/graemlins/diamond.gif[/img] Q[img]/images/graemlins/heart.gif[/img] 6[img]/images/graemlins/heart.gif[/img] (6SB, 3 players)
SB checks, BB checks, <font color="#cc0000">Hero bets</font>, SB calls, BB calls.

Turn: 2[img]/images/graemlins/diamond.gif[/img] (4.5BB, 3 players)
SB checks, <font color="#cc0000">BB bets</font>, and I guess everything is possible here, but what is best??