Party Poker No-Limit Hold'em, $ BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

MP2 ($136.85)
MP3 ($169.77)
CO ($79.60)
Button ($88)
Hero ($99)
BB ($93.27)
UTG ($173.80)
UTG+1 ($98.85)
MP1 ($10.25)

Preflop: Hero is SB with K, K. Hero posts a blind of $0.50.
6 folds, Button raises to $3, Hero (poster) raises to $10.5, 1 fold, Button calls $8.

Flop: ($23) K, 9, 5 (2 players)
Hero bets $14, Button calls $14.

Turn: ($51) 5 (2 players)
Hero ???

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Villian is an unknown.

Is it best to still bet out here, or do you like a check on the turn, bet out on river line to get value from hands like TT-QQ?