Paired and flushed board on the river with AA 100NL

[STARSCREAM.]

Villian here is a pretty aggressive player, he was running at about 21/19/3.5 with an attn to steal of 33%. For these numbers I felt like a FD was pretty much entirely out of his range, and that the board pairing probably helped my hand.

Is this an easy bet/call on the river?

What if he leads into you on the river?

Full Tilt Poker, $0.50/$1 NL Hold'em Cash Game, 5 Players
LeggoPoker Hand History Converter

SB: $156.55
BB: $131.25
UTG: $100
Hero (CO): $100
BTN: $110.20

Pre-Flop: A[img]/images/graemlins/heart.gif[/img] A[img]/images/graemlins/club.gif[/img] dealt to Hero (CO)
UTG folds, <font color="red">Hero raises to $4</font>, 2 folds, BB calls $3

Flop: ($8.50) 6[img]/images/graemlins/club.gif[/img] T[img]/images/graemlins/diamond.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $6</font>, BB calls $6

Turn: ($20.50) 4[img]/images/graemlins/club.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $16</font>, BB calls $16

River: ($52.50) J[img]/images/graemlins/diamond.gif[/img] (2 Players)
BB checks, <font color="red">Hero bets $40</font>

[Lucky]

if he bets river, I'm calling; if you bet and get raised, you're getting 5 to 1, so b/c is good.

If he were tighter type, betting less on river and b/f would be good.