$5NL 6max. sb 3bets BIG into my KK.

Villain just joined the table 7 hands ago, running 0/0/0.
I'm dealt KK, great hand afaik. But my experience online has been when these guys 3bet ~14bb+, they got the nuts. BUT I figured $5 NL these guys are generally loose although I haven't got stats on this fellow. What are your opinions?

Also, does anyone know the probability that a 6handed table will have KK vs AA? Not considering 3bets or 4bets, just as the cards are dealt out, what is the probability those 2 hands will meet?

Full Tilt No-Limit Hold'em, $0.05 BB (6 handed) - Full-Tilt Converter Tool from FTR <-- had to edit b/c wont let me post links

CO ($7.53)
Button ($5.11)
Villain (SB) ($5.02)
Hero (BB) ($5.56)
UTG ($1.83)
MP ($1.83)

Preflop: Hero is BB with Kh, Kd
UTG bets $0.20, 3 folds, Villain raises to $0.65, Hero raises to $5.56 (All-In), 1 fold, Villain calls $4.37 (All-In)

Flop: ($10.24) 4s, 2s, 4c (2 players, 2 all-in)

Turn: ($10.24) Kc (2 players, 2 all-in)

River: ($10.24) Ad (2 players, 2 all-in)

Total pot: $10.24 | Rake: $0.68

Results:
Villain had Ac, Ah (full house, Aces over fours).
Hero had Kh, Kd (full house, Kings over fours).
Outcome: Villain won $9.56

Your raise size sucks.

I dont see anything wrong with this, could 4bet less but either way your getting it in. You musta been fist-pumping when the turn card hit.

Villain raise size indicates that he has a clue (no stupid min raise here), but his re-raising range is most likely not *only* AA. You could maybe put him on JJ+, AK, and in fact probably wider than that at 6-max. I would probably re-raise him to $2 and hope he calls with worse or folds, but I would call if he shoves.

There are very few situations where it is correct to fold KK preflop, and they are always multi-way pots where the action indicates with a very strong likelihood that AA is in the hole.

Note: you'll be able to use the FTR hand converter once you have 10 posts.

What's usually a good '4bet' size? 3-4x Vi's 3bet size?

Yes, that is the norm if the stacks are deep like in your case above. But you need to adapt that if the effective stack is smaller. It may very well be correct to 4-bet-shove to 5, 6 or 7x the initial raise if the stack sizes call for it. You also need to raise more when there was a call after the initial raise (3 live players total) or if there is extra dead money in the pot.

The whole idea is to deny your opponent the correct pot odds to call with his range, or most of his range. You can do all the maths with Pokerstove. In the case above, if his range is JJ+, AK, you can calculate that you should raise to at least $2.1 to deny him the correct odds.

So really, the correct way is to size your bet in relation to the size of the current pot and your opp's range, and not in relation to villain's raise size (which is more often than not incorrect at the micro's anyway).