AKo 2/4 online 2 bets back to me

[threeducks]

Hello, I am a little hesitant to start yet another thread today. But, I really need some help on this hand.

I don't want to be weak/tight and I don't want to be reckless either.

As you can see I raised preflop and bet the flop and got raised and 3-bet.

My first inclination was to cap it - but that seemed a bit reckless.

PokerStars 2/4 Hold'em (8 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

Preflop: Hero is MP2 with A[img]/images/graemlins/spade.gif[/img], K[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises</font>, CO calls, Button calls, SB calls, BB calls.

Flop: (10 SB) 5[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/club.gif[/img], K[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">CO raises</font>, <font color="#CC3333">Button 3-bets</font>, SB folds, BB calls, Hero calls, CO calls.

Turn: (11 BB) 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(4 players)</font>
BB checks, <font color="#CC3333">Hero bets</font>, CO calls, Button calls, BB calls.