Playing scared w/ AA

[spino1i]

OK villains are unknown, basically I just dont want to get put to some nasty decision by a possible semi-bluff or run into a set so I kinda played passive. Good idea or should I have been more direct and bet/folded?

I feel like raising flop is bad because im behind/flipping with so many hands and my hand is fairly transparent. I feel like a bet on the river is bad because he knows what i have and will only call with better. Perhaps bet the turn? But I dunno..

PokerStars Game #9259317529: Omaha Pot Limit ($0.25/$0.50) - 2007/04/05 - 01:47:54 (ET)
Table 'Orestes III' 6-max Seat #4 is the button
Seat 1: THEDUDE8023 ($235 in chips)
Seat 2: EvilEcstasy ($49.25 in chips)
Seat 3: sweethart721 ($37.95 in chips)
Seat 4: ceelumpy ($62.40 in chips)
Seat 5: DE KID ($52.20 in chips)
Seat 6: SilentAcorns ($51.70 in chips)
DE KID: posts small blind $0.25
SilentAcorns: posts big blind $0.50
*** HOLE CARDS ***
Dealt to EvilEcstasy [As Qh 9d Ac]
sweethart721 said, "turn didnt help me"
sweethart721 said, "river did"
THEDUDE8023: raises $0.50 to $1
EvilEcstasy: raises $2.75 to $3.75
sweethart721: folds
ceelumpy: folds
THEDUDE8023 said, "your right"
DE KID: calls $3.50
SilentAcorns: folds
THEDUDE8023 said, "queen hearts was the turn"
THEDUDE8023: calls $2.75
*** FLOP *** [5c 9h 7c]
DE KID: checks
THEDUDE8023: bets $3
EvilEcstasy: calls $3
DE KID: folds
*** TURN *** [5c 9h 7c] [Td]
THEDUDE8023: checks
EvilEcstasy: checks
*** RIVER *** [5c 9h 7c Td] [2d]
THEDUDE8023: checks
EvilEcstasy: checks