25NL - AA against unknown on double paired board

[VLV]

Villain is unknown and has only been at the table for a few hands. I'm just getting back into poker after a month break so I'm still a bit rusty.

Full Tilt Poker, $0.10/$0.25 NL Hold'em Cash Game, 6 Players
LeggoPoker Hand History Converter

UTG: $21.10
MP: $14.40
CO: $41.45
Hero (BTN): $25.25
SB: $68.40
BB: $25.70

Pre-Flop: A[img]/images/graemlins/diamond.gif[/img] A[img]/images/graemlins/club.gif[/img] dealt to Hero (BTN)
3 folds, <font color="red">Hero raises to $0.85</font>, SB folds, BB calls $0.60

Flop: ($1.80) 2[img]/images/graemlins/heart.gif[/img] K[img]/images/graemlins/club.gif[/img] K[img]/images/graemlins/diamond.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $1.40</font>, <font color="red">BB raises to $3.80</font>, Hero calls $2.40

Turn: ($9.40) 2[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">BB bets $6</font>, Hero ???

Easy fold? Should I have called flop? I thought about raising and trying to get it all in but I think that would have been stupid as no hand worse than mine would call a flop 4bet right?

[Profish2285]

There is no reason to raise this flop, you go into WA/WB mode and call down. I honestly think I still call down regardless of that turn because it is just very unlikely villain has a two.