Biggish pot for NL25, ideas?

[italianstang]

No reads on opponent, just sat down. By the river I am trying to decide how our hands have been defined.

PokerStars No-Limit Hold'em, $0.25 BB (6 handed) converter

CO ($12.90)
Button ($9.95)
SB ($20.15)
BB ($14.80)
Hero ($30.30)
MP ($37.75)

Preflop: Hero is UTG with A[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/diamond.gif[/img].
Hero calls $0.25, MP calls $0.25, CO calls $0.25, <font color="#666666">1 fold</font>, SB completes, BB checks.

Flop: ($1.25) 2[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/diamond.gif[/img], 2[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, <font color="#CC3333">BB bets $0.75</font>, <font color="#CC3333">Hero raises to $2</font>, MP calls $2, CO folds, SB folds, BB folds.

Turn: ($6) K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $5</font>, MP calls $5.

River?