Party Poker No-Limit Hold'em, $ BB (9 handed) FTR converter on zerodivide.cx

saw flop|saw showdown

BB ($112.40)
UTG ($118.75)
UTG+1 ($62.75)
Hero ($106.80)
MP2 ($98)
MP3 ($77.35)
CO ($140.65)
Button ($170.20)
SB ($114.05)

Preflop: Hero is MP1 with 3, 3. SB posts a blind of $0.50.
UTG calls $1, 1 fold, Hero calls $1, 1 fold, MP3 calls $1, CO calls $1, 2 folds, BB checks.

Flop: ($5.50) K, T, 3 (5 players)
BB checks, UTG checks, Hero bets $2, MP3 calls $2, CO calls $2, BB folds, UTG folds.

Turn: ($11.50) K (3 players)
Hero checks, MP3 bets $5, CO calls $5, Hero calls $5.

River: ($26.50) J (3 players)
Hero bets $5, MP3 raises to $30, CO calls $30, Hero ?

MP3 is LAP

What's your move here?