Party Poker No-Limit Hold'em, $0.04 BB (5 handed) Party-Poker Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG ($3.04)
MP ($7.70)
Button ($4.92)
Hero ($10.69)
BB ($4.96)

Preflop: Hero is SB with K, K.
UTG raises to $0.16, MP calls $0.16, Button calls $0.16, Hero raises to $0.7, 1 fold, UTG calls $0.56, MP calls $0.56, Button calls $0.56.

Flop: ($2.90) 9, 5, 7 (4 players)

Final Pot: $2.90
I know this probably isn't a very controversial situation, but I was wondering what your thoughts are on bet sizing here.
I think I could have made it a little more to go pre-flop, but I don't really mind 2 calls here. The third one wasn't necessary, but I don't really mind.
I think I might have outpriced myself a little on the flop. I bet 2.5 and everybody folded. But I really think I could have made it more pre-flop.