Beaten by stupid play?

[Superior]

I've just started playing poker in the online world (micro-limit as of now) and got greated nicely with this hand. Could I have done anything more here or was I simply beaten by dumb luck? Here's the hand history:

I was dealt KK. He showed A3.

> Game # 108,906,500 starting.
> Dealing Hole Cards
> Stooge folded
> Andrewkm checked
> adam007 folded
> mld59 called for $0.10
> supersub raised for $0.20
> ac781111 folded
> borolad1 folded
> dhruv folded
> Aloktoeto folded
> FarSuperior raised for $0.60
> Andrewkm folded
> mld59 folded
> supersub raised for $1
> FarSuperior raised for $4
> supersub went all-in for $4.85
> FarSuperior called for $1.35
> Dealing the Flop(5¨2¨A§)
> Dealing the turn(9¨)
> Dealing the river(9ª)
> supersub shows Two Pair, Aces over Nines
(A§Aª9¨9ª5¨)
> supersub wins $12.10 with Two Pair, Aces over Nines

[allLiving]

You played it very well, you just got outdrawn by a very lucky fish. Keep playing like this and you will win most of the time.

Consider that he had 3 outs, roughly 30% chance to hit his pair. 70% of the time you're going to win!! Keep it up.