I shot the sheriff

PokerStars Game #_: Tournament #_, $10+$1 Hold'em No Limit - Level I (10/20) - 2008/01/11 - 17:32:47 (ET)
Table '_' 9-max Seat #9 is the button
Seat 1: (3180 in chips)
Seat 2: villain (1550 in chips)
Seat 3: hero (1760 in chips)
Seat 4: (1470 in chips)
Seat 6: (1430 in chips)
Seat 7: (1280 in chips)
Seat 8: (1380 in chips)
Seat 9: (1450 in chips)
BSUfan41: posts small blind 10
rocton: posts big blind 20
*** HOLE CARDS ***
Dealt to hero [Kd 9s]

I've decided to bluff here, I've got aces, and I'm going to the wall with it.

hero: raises 40 to 60
Seat 4: folds
Seat 6: calls 60
Seat 7: folds
Seat 8: folds
Seat 9: folds
Seat 1: folds
villain: calls 40
*** FLOP *** [8d 5s 7h]
villain: bets 80

If I had aces, I'd be afraid of that flop. Any one with a would have a straight draw, and the 45 or 9T hands have an outside draw. So I can't give a free card.

At this point I actually said in the chat window, "No draws allowed!"

hero: raises 120 to 200
Seat 6: folds
villain: calls 120
*** TURN *** [8d 5s 7h] [7d]
villain: checks
hero: bets 600
villain: calls 600
*** RIVER *** [8d 5s 7h 7d] [9h]
villain: bets 140
hero: raises 580 to 720
villain: calls 550 and is all-in
*** SHOW DOWN ***
hero: shows [Kd 9s] (two pair, Nines and Sevens)
villain: shows [8c Tc] (two pair, Eights and Sevens)

Now, if you were in his shoes, would you honestly think your 2nd pair was good at this point? I've had a pretty good image at this point, so I think the full bluff would have been unexpected.

hero collected 3170 from pot
*** SUMMARY ***
Total pot 3170 | Rake 0
Board [8d 5s 7h 7d 9h]
Seat 1: (small blind) folded before Flop
Seat 2: villain (big blind) showed [8c Tc] and lost with two pair, Eights and Sevens
Seat 3: hero showed [Kd 9s] and won (3170) with two pair, Nines and Sevens
Seat 4: folded before Flop (didn't bet)
Seat 6: folded on the Flop
Seat 7: folded before Flop (didn't bet)
Seat 8: folded before Flop (didn't bet)
Seat 9: (button) folded before Flop (didn't bet)