100NL KK vs. agg. villian

PokerStars No-Limit Hold'em, $1.00 BB (9 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Hero ($100)
MP2 ($136.10)
MP3 ($23.50)
CO ($117.75)
Button ($97.50)
SB ($155.80)
BB ($112.65)
UTG ($248.50)
UTG+1 ($143.70)

Preflop: Hero is MP1 with Khttp://www.flopturnriver.com/phpBB2/...miles/club.gif, Khttp://www.flopturnriver.com/phpBB2/...es/diamond.gif.
1 fold, UTG+1 calls $1, Hero raises to $4.75, MP2 calls $4.75, 5 folds, UTG+1 calls $3.75.

Flop: ($15.75) 2http://www.flopturnriver.com/phpBB2/...miles/club.gif, Qhttp://www.flopturnriver.com/phpBB2/...miles/club.gif, 9http://www.flopturnriver.com/phpBB2/...iles/heart.gif (3 players)
UTG+1 checks, Hero bets $13, MP2 raises to $34, UTG+1 folds, Hero ???

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MP2 is a 52/29/3.5 over 100 hands.

What's your move here?

I'm still not that great at interpreting the aggression factor stats, so could you also include what if you would do if the Villian's AF was 1.00 or 2.00?

I think I 3-bet big and push turn.

Im really not an aggression factor fan, as it basically just says that villain doesn't smooth call alot. If the guy bets twice, raises once, calls once, and folds 50 times he'll still have an AF of 3. I find the Aggression Frequency stat more important in these situations. The A-Factor is great for spotting calling stations, though. Low AF + high WTSD = CS.

Edit; so if his AFQ is really low I might slow down considerably, as it suggests that he plays a lot of hands to the flop but is only continuing if he hits hard.