Too aggressive?
 

PokerStars 0.05/0.10 Hold'em (10 handed)

Preflop: Hero is BB with K[img]/images/graemlins/spade.gif[/img], A[img]/images/graemlins/heart.gif[/img].
UTG calls, UTG+1 folds, UTG+2 folds, MP1 calls, MP2 calls, MP3 calls, CO folds, Button calls, SB completes, <font color="CC3333">Hero raises</font>, UTG folds, MP1 calls, MP2 calls, MP3 calls, Button calls, SB calls.

Flop: (13 SB) K[img]/images/graemlins/diamond.gif[/img], 8[img]/images/graemlins/diamond.gif[/img], 9[img]/images/graemlins/club.gif[/img] <font color="blue">(6 players)</font>
SB checks, <font color="CC3333">Hero bets</font>, MP1 calls, MP2 folds, MP3 calls, <font color="CC3333">Button raises</font>, SB folds, <font color="CC3333">Hero 3-bets</font>, MP1 calls, MP3 calls, <font color="CC3333">Button caps</font>, Hero calls, MP1 calls, MP3 calls.

Turn: (14.50 BB) 3[img]/images/graemlins/spade.gif[/img] <font color="blue">(4 players)</font>
<font color="CC3333">Hero bets</font>, MP1 calls, MP3 calls, <font color="CC3333">Button raises</font>, <font color="CC3333">Hero 3-bets</font>, MP1 calls, MP3 calls, <font color="CC3333">Button caps</font>, Hero calls, MP1 calls, MP3 calls $0.05 (All-In).

River: (30 BB) 6[img]/images/graemlins/club.gif[/img] <font color="blue">(4 players, 1 all-in)</font>
<font color="CC3333">Hero bets</font>, MP1 folds, Button calls.

Final Pot: 32 BB
<font color="green">Main Pot: 28.50 BB, between Hero, MP3 and Button.</font> &gt; <font color="white">Pot won by Button (28.50 BB).</font>
<font color="green">Pot 2: 3.50 BB, between Hero and Button.</font> &gt; <font color="white">Pot won by Button (3.50 BB).</font>

Results in white below: <font color="white">
Hero shows Ks Ah (one pair, kings).
MP3 shows Qh Jh (high card, king).
Button shows 8c Kh (two pair, kings and eights).
Outcome: Button wins 32 BB. </font>

Re: Too aggressive?
 

This is a player-dependent thing, but I'd call the turn raise.

Sure, he might cap the flop with JTd, but he wouldn't raise the turn. Unless he's playing A9d really hard, I don't see how you could be ahead.

Re: Too aggressive?
 

I would be tempted to just call the flop raise and go for a check-raise on the turn when the blank comes. If reraised, I call down.

Re: Too aggressive?
 

With the button's raise, I think the re-raise is good to test the flush draw. I'd put the button on K9 or 99 after he caps it. Check-call from there unless 3 to the flush shows up which folds me out and hope for an A or K -- you're currently beat, and may be drawing dead against trips.