My wife called right as I was dealt the cards!!! Anyhow, the button is a bit loose; apart from that not much read on any players. Was my fold weak? Should I have bet the flop?

PokerStars No-Limit Hold'em, $0.02 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

UTG+1 ($3.23)
MP1 ($1.85)
MP2 ($2.33)
MP3 ($1.86)
CO ($1.69)
Button ($2.05)
SB ($0.83)
Hero ($3.33)
UTG ($3.93)

Preflop: Hero is BB with A, A.
3 folds, MP2 raises to $0.04, 2 folds, Button calls $0.04, SB calls $0.03, Hero raises to $0.26, MP2 calls $0.22, Button calls $0.22, SB folds.

Flop: ($0.82) K, K, 9 (3 players)
Hero checks, MP2 checks, Button bets $1, Hero folds, MP2 folds.

Final Pot: $1.82