Button is a 76/16 calling station but I don't think he'd call pre with a 2 other than with A2. Just stick the rest in?

Party Poker No-Limit Hold'em, $ BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

saw flop|saw showdown

UTG ($135.30)
Hero ($98)
CO ($7.85)
Button ($185.43)
SB ($99)
BB ($139)

Preflop: Hero is MP with K, A. SB posts a blind of $0.50.
UTG calls $1, Hero raises to $4, CO calls $7.85 (All-In), Button calls $7.85, SB (poster) calls $7.35, 1 fold, UTG folds, Hero calls $3.85.

Flop: ($33.40) K, 2, 2 (4 players, 1 all-in)
SB checks, Hero bets $25, Button calls $25, SB folds.

Turn: ($83.40) 6 (3 players, 1 all-in)
Hero ???