Villain is loose passive pre- and postflop. Preflop numbers are ~30/5/1.4 over ~100 hands. I haven't seen him do anything too stupid yet. Line check?

Full Tilt Poker - No Limit Holdem Ring game - Blinds: $1/$2 - 9 players - Converter

Stack sizes:
UTG: $158.70
UTG+1: $401.75
MP1: $435.05
MP2: $175.20
Hero: $311
CO: $118.90
Button: $116.45
SB: $65.90
BB: $283.85

Pre-flop: (9 players) Hero is MP3 with A K
4 folds, Hero raises to $7, 2 folds, SB calls, BB raises to $22, Hero calls, SB folds.

Flop: 7 J K ($51, 2 players)
BB bets $32, Hero calls.

Turn: 5 ($115, 2 players)
BB bets $36, Hero calls.

River: T ($187, 2 players)
BB bets $62, Hero calls.