AK flops KK6 gets heavy betting, yahoo!!!

I just sat down at table . this is my second hand there. No reads whatever.

Party Poker No-Limit Hold'em, $ Hero (6 max, 6 handed)
FTR converter on zerodivide.cx

saw flop|<font color="#C00000">saw showdown</font>

CO ($30.35)
Button ($20.20)
SB ($50.37)
<font color="#C00000">Hero ($25)</font>
<font color="#C00000">UTG :#A500AF(villain)/ ($25.35)</font>
MP ($29.45)

Preflop: Hero is BB with K[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/club.gif[/img]. SB posts a blind of $0.10.
UTG :#A500AF(villain)/ calls $0.25, <font color="#666666">2 folds</font>, Button calls $0.25, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to $0.75</font>, UTG :#A500AF(villain)/ calls $0.75, Button calls $0.75.

Flop: ($3.10) K[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $1</font>, <font color="#CC3333">villain raises to $3</font>, Button folds, Hero calls $2.

Turn: ($9.10) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">villain bets $2.5</font>, <font color="#CC3333">Hero raises to $5</font>, <font color="#CC3333">villain raises to $15</font>, Hero calls $16 (All-In), villain calls $6.

River: ($51.10) 3[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players, 1 all-in)</font>

Final Pot: $51.10

Did i play this right?? What about that weak flop bet??
What does the raise there suggest?
i'll post results soon.