One more KK hand, did I bet too much on the flop??

[mongoose51]

I think a bet of $15 might entice the one pair, flush or straight draws to call , but an incorrect call as the odds I would be offering would be to low. So should I encourage bad calls , or be happy to shut them out on the flop?

Party Poker No-Limit Hold'em, $ BB (7 handed) FTR converter on zerodivide.cx

BB ($69.24)
UTG ($94.65)
MP1 ($0)
MP2 ($93.82)
CO ($238.47)
Button ($98)
Hero ($82.75)

Preflop: Hero is SB with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/diamond.gif[/img]. Hero posts a blind of $0.50.
UTG calls $1, MP2 calls $1, CO calls $1, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero (poster) raises to $7.5</font>, <font color="#666666">1 fold</font>, UTG calls $7, MP2 calls $7, CO folds.

Flop: ($26) 5[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">Hero bets $25</font>, UTG folds, MP2 folds.

Final Pot: $51