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

UTG ($70.60)
Hero ($85.78)
CO ($57.65)
Button ($52.02)
SB ($74.30)
BB ($48.50)

Preflop: Hero is MP with K, K.
UTG raises to $2, Hero raises to $6, 4 folds, UTG calls $4.

Flop: ($12.75) J, Q, 3 (2 players)
UTG checks, Hero bets $8, UTG raises to $20, Hero ??