NL25 rush river value bet

[babyonboard]

$0.10/$0.25 No Limit Holdem
FullTiltPoker (http://weaktight.com/ftp/)
6 Players
Hand Conversion Powered by weaktight.com (http://weaktight.com/)

Stacks:
UTG mAAkler ($26.96)
UTG+1 analyse this ($20.28)
CO Dydd Gwener ($25.45)
BTN Hero ($25)
SB Bintu ($24.57)
BB sb22sb22 ($25)

Pre-Flop: ($0.35, 6 players) Hero is BTN :kc: :td:
3 folds, Hero raises to $0.75, Bintu calls $0.65, 1 fold

Flop: :9c: :5h: :2s: ($1.75, 2 players)
Bintu checks, Hero bets $1.25, Bintu calls $1.25

Turn: :7s: ($4.25, 2 players)
Bintu checks, Hero bets $2.98, Bintu calls $2.98

River: :kh: ($10.21, 2 players)
Bintu checks, Hero ???

villain is unknown. wat kind of betsize would you choose here? do you afraid from being cr-ed(bluff or value...)?

[castor11]

I would bet 7$/fold.

[want2push]

villain is unknown. wat kind of betsize would you choose here? do you afraid from being cr-ed(bluff or value...)?
No, I am not afraid that much of being cr-ed here. I think a river value bet is obligatory. I would bet/fold $7.