UTG had stats of about 40/5/4 over 40 hands. I'd seen him play his OK hands (< two pair) aggressively, but had no idea how he would play such hands against my reraise, or how he played a draw.

The turn play looks like a draw, but the river bet looks like a bad blocking bet rather than a weak bet from a flush to encourage a reraise, although it still could be because I played the previous two streets aggressively. Call or raise?

Full Tilt Poker
No Limit Holdem Ring game
Blinds: $0.10/$0.25
9 players
Converter

Stack sizes:
UTG: $27.90
UTG+1: $3.75
MP1: $33.05
Hero: $36.45
MP3: $11.55
CO: $22.75
Button: $9.40
SB: $36.25
BB: $27.35

Pre-flop: (9 players) Hero is MP2 with K 9
UTG calls, 2 folds, Hero calls, MP3 folds, CO calls, Button folds, SB calls, BB checks.

Flop: 7 9 K ($1.25, 5 players)
SB checks, BB checks, UTG bets $1, Hero raises to $3, 3 folds, UTG calls.

Turn: 3 ($7.25, 2 players)
UTG bets $0.25, Hero raises to $5, UTG calls.

River: 6 ($17.25, 2 players)
UTG bets $2, Hero ?