$100NL Flopped Quad A's . Best strategy to extract $$ ?

[FearNoArt]

Though this situation doesn't come up much, what's the best way to extract the most from this ? Is maybe a flop bet the best, that way it looks like there is no way you have an A ? Maybe an overbet? Are my bets too small ? How do you play these situations ? My first instinct is to check.


PokerStars No-Limit Hold'em, $1.00 BB (8 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

CO ($100)
Button ($28.45)
SB ($102.25)
BB ($116.10)
UTG ($100.85)
UTG+1 ($137.05)
Hero ($102.20)
MP2 ($20)

Preflop: Hero is MP1 with A[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/heart.gif[/img]. MP2 posts a blind of $1.
<font color="#666666">2 folds</font>, Hero calls $1, MP2 (poster) checks, <font color="#CC3333">CO raises to $4</font>, Button calls $4, <font color="#666666">2 folds</font>, Hero calls $3, MP2 folds.

Flop: ($14.50) A[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/diamond.gif[/img], A[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, CO checks, Button checks.

Turn: ($14.50) K[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets $5</font>, CO calls $5, Button folds.

River: ($24.50) 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $10</font>, CO calls $10.

Final Pot: $44.50

Results in white below:
Hero has Ah 7h (four of a kind, aces).
CO has Kc Qc (full house, aces full of kings).
Outcome: Hero wins $44.50.