I bet too small on the turn, villain pushed river.

Party Poker No-Limit Hold'em, $ BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

saw flop|saw showdown

SB ($25.85)
BB ($49)
UTG ($24.75)
Hero ($42.50)
Button ($24.50)

Preflop: Hero is MP with Khttp://www.flopturnriver.com/phpBB2/...iles/heart.gif, Khttp://www.flopturnriver.com/phpBB2/...es/diamond.gif. SB posts a blind of $0.10.
1 fold, Hero raises to $1, 1 fold, SB (poster) calls $0.90, 1 fold.

Flop: ($2.25) 2http://www.flopturnriver.com/phpBB2/...iles/spade.gif, 2http://www.flopturnriver.com/phpBB2/...es/diamond.gif, 7http://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
SB bets $2, Hero raises to $5, SB calls $3.

Turn: ($12.25) 3http://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
SB checks, Hero bets $6, SB calls $6.

River: ($24.25) Ahttp://www.flopturnriver.com/phpBB2/...iles/heart.gif (2 players)
SB calls $13.85 (All-In), Hero calls $13.85.

Final Pot: $51.95

I'm guessing I bet too small on the turn. Villain is 27/8. I don't think he goes to the river with AK AQ AJ. I figured he could have 88-JJ or A7. What are your reads, and what would you have done on the river? Easy call with the pot that big? I guess it would have been easier if I bet bigger on the turn.

Well. Flop raise is too little. I make it at least 7. Turn bet is a little weak as well. I think I fold that river, too. What do you beat here? K7?

I think flop is fine, you don't want to chase away 88 or A7 ish. Turn make it 8, then call the 10 on the river and pay off 52. But I don't think 6 is bad.

As played, I can't see folding getting 3/1.