AA - Lay it down?

[J0ker]

Villain is 42/16/2.9
Is this a standard fold?
Also what size bet do you think is optimal to lead out with on the turn?
$20 seems real weak when I was looking over the hand, especially with the two flush draws.



NL 100 - 3 Handed

Villain is UTG with $114.25
Hero is SB with $125

Preflop:
Villain raises to $2.00
Hero re-raises to $8.50
BB fold

Flop: 5c 2d Qd (Pot = $18)
Hero bets $14
Villain calls

Turn: 8c (Pot = $46)
Hero bets $20
Villain re-raises to $91.75
Hero...