Villain has been quiet, don't know how he got his stack. I just sat down, stacked two donks with the goods, so nothing out of line.Obvious first caller is weak/tight. I can't really identify anyone who limps button in 2/4 6-max as anything but weak/tight, so the raise is definitely scary. Most interested in flop line. Note stacks.

PokerStars No-Limit Hold'em, $4 BB (6 handed) Poker-Stars Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($602.60)
Hero ($719.85)
BB ($240)
UTG ($305.25)
MP ($100)
CO ($260.30)

Preflop: Hero is SB with 6, 9. MP posts a blind of $4.
1 fold, MP (poster) checks, 1 fold, Button calls $4, Hero completes, BB checks.

Flop: ($16) 6, 9, 7 (4 players)
Hero bets $12, BB folds, MP calls $12, Button raises to $48, Hero calls $36, MP folds.

Turn: ($124) 2 (2 players)
Hero checks, Button bets $75, Hero