NL50: Flopped 2pr is counterfeit, what now?

[bigslicknuts]

Poker Stars - No Limit Hold'em Cash Game - $0.25/$0.50 Blinds - 7 Players - (LegoPoker Hand History Converter)

SB: $31.95
BB: $21.50
UTG: $36.90
Hero (UTG+1): $51.40
MP: $62.25
CO: $53.85
BTN: $77.05

Preflop: Hero is dealt 9[img]/images/graemlins/diamond.gif[/img] T[img]/images/graemlins/diamond.gif[/img] (7 Players)
UTG folds, <font color="red">Hero raises to $2.00</font>, MP calls $2.00, 4 folds

Flop: ($4.75) T[img]/images/graemlins/spade.gif[/img] 6[img]/images/graemlins/club.gif[/img] 9[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets $4.00</font>, MP calls $4.00

Turn: ($12.75) 6[img]/images/graemlins/heart.gif[/img] (2 Players)
Hero ??

Do I check to let him bluff-bet/avoid being raised, or do I need to keep betting against this draw?