playing big hands

[inferno]

villian is 57/40 and I flop the nuts. So I want to keep him in the hands, should I just push it on the flop or wait for the turn?

1)Full Tilt Poker $0.50/$1 No Limit Hold'em - 5 players
Hand Converter Tool from DeucesCracked.com

UTG: $435.65
CO: $110.90
Button: $79.75
SB: $160.65
BB: $130.50

Preflop: Hero is BB with 8[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/club.gif[/img]
<font color="#FF0000">UTG raises to $3</font>, CO folds, Button folds, SB folds, Hero calls $2.

Flop: ($6.50) 4[img]/images/graemlins/diamond.gif[/img], 7[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#FF0000">UTG bets $4</font>, <font color="#FF0000">Hero raises to $10</font>, <font color="#FF0000">UTG raises to $25</font>, Hero calls $15.

Turn: ($56.50) 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#FF0000">UTG bets $40</font>, <font color="#FF0000">Hero raises to $102.50 (all in)</font>...

2)
villian is 52vpip I figure if he has a pair he will call a potsized bet here. Also he will prolly not put me on AA/KK if I bet pot here right?

Full Tilt Poker $0.50/$1 No Limit Hold'em - 6 players
Hand Converter Tool from DeucesCracked.com

CO: $244.65
Button: $106.10
SB: $100.50
BB: $66.15
UTG: $66.35
MP: $99.90

Preflop: Hero is SB with K[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/club.gif[/img]
UTG folds, MP folds, <font color="#FF0000">CO raises to $3.50</font>, Button folds, <font color="#FF0000">Hero raises to $9</font>, BB calls $8, CO folds.

Flop: ($21.50) Q[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#FF0000">Hero bets $20</font>...