200NL - Top pair on drawheavy board, how do we extract?

Villain has just been one orbit at the table and splashed around in a couple of hands but haven't went to any showdowns. No solid reads but my I guesstimated he was a pretty weak player. This hand puzzles me a little because of villains stacksize and his rather smallish flopbet. I would guess we are often ahead here, but calling seems kinda bad because of the draws out there (even tho we have the J of spades), but raising seems to fold out the hands we beat. What's our play?

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

Stack sizes:
UTG: $220.10
UTG+1: $345.35
MP1: $249.70
MP2: $179.25
Hero: $215.30
Button: $234.25
SB: $575.65
BB: $100

Pre-flop: (8 players) Hero is CO with K :diamond: J :spade:
3 folds, MP2 calls, Hero raises to $9, 2 folds, BB calls, MP2 calls.

Flop: K :spade: 6 :spade: 5 :spade: ($28, 3 players)
BB bets $16, MP2 folds, Hero ???

make it 50ish and play for stacks vs this shorty. if he was full stacked it would be a little different