vil 21/11 over 180 hands...

Party Poker No-Limit Hold'em, $0.50 BB (6 handed) Party-Poker Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

CO ($85.55)
Button ($46.87)
SB ($63.93)
BB ($54.57)
Hero ($49.94)
MP ($90.89)

Preflop: Hero is UTG with A, K.
Hero raises to $2, 1 fold, CO calls $2, 1 fold, SB raises to $8, 1 fold, Hero calls $6, CO folds.

Flop: ($18.50) 4, 6, 3 (2 players)
SB bets $15, Hero ??