[Nl5] AA vs calling unknown

Del tipo no tengo manos recien entraba, que dicen de

$0.02/$0.05 No-Limit Hold'em (8 handed)

Known players:

UTG2 = ($7.08)

MP1 = ($5.03)

MP2 = ($2.00)

MP3 (Hero) = ($5.32)

CO = ($5.20)

BU = ($4.90)

SB = ($5.33)

BB = ($5.98)

[B]Preflop: Hero is MP3 with A, A.

3 folds, Hero raises to $0.15, CO calls $0.15, BU calls $0.15, 2 folds, [I]BB folds.

[B]Flop: ($0.52) 2, K, 3 (3 players)

Hero bets $0.38, [I]CO folds, BU calls $0.38.

[B]Turn: ($1.28) 8 (2 players)

Hero bets $0.95, BU calls $0.95.

[B]River: ($3.18) K (2 players)

????[/B][/I][/I][/B][/B][/B]