Do I have to fold AK preflop?

[alphabet_]

I Don't sure about how to play AK here. Do I have to fold preflop? Or do I have to 3-bet (fold if pushed) preflop?
My plan was to call, and CRAI flop if Ace or King comes, so as played.

Villain is 18/14/1.4 by 350 hands.

Party Poker, $0.10/$0.25 NL Hold'em Cash Game, 6 Players
LegoPoker (http://www.legopoker.com)Hand History Converter (http://www.legopoker.com/hh)

SB: $50.81
BB: $25.05
UTG: $28.94
MP: $9.66
Hero (CO): $19.84
BTN: $34.86

Pre-Flop: K/images/graemlins/diamond.gif A/images/graemlins/spade.gif dealt to Hero (CO)
UTG folds, MP calls $0.25, <font color="red">Hero raises to $1.25</font>, <font color="red">BTN raises to $4.44</font>, 3 folds, Hero calls $3.19

Flop: ($9.48) K/images/graemlins/spade.gif T/images/graemlins/club.gif 7/images/graemlins/heart.gif (2 Players)
Hero checks, <font color="red">BTN bets $7</font>, <font color="red">Hero raises to $15.40 and is All-In</font>, BTN calls $8.40

Turn: ($40.28) 5/images/graemlins/heart.gif (2 Players - 1 is All-In)

River: ($40.28) 6/images/graemlins/spade.gif (2 Players - 1 is All-In)

Results: $40.28 Pot ($2.01 Rake)

[bazooka87]

I think you played it fine

[infinity235]

Your line and your plan was fine.

[choccypie]

Looks good imo

[GSykes]

looks fine but I just put in the 4bet to 13 and call a shove.

[Upgrade_U]

You already got 3bet, if you would have raised again it would have been a 4bet

[sl8a]

played fine imo