I just sat down, no read on villain. The slightly more than pot sized/slightly less than 4xBB button open looks weird to me, but I don't know what to make of it.

I don't mind folding PF, but it seems like a hand enough potential to at least see a flop with (or should I not when it's HU?).

Do you lead out a donk bet here and fold to resistance? Check/raising seems spewy without a read that he raises ATC on the button. Check/calling doesn't feel right, either.

Full Tilt No-Limit Hold'em, $0.25 BB (6 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

saw flop|saw showdown

UTG ($14.60)
MP ($56.80)
CO ($31.45)
Button ($49.90)
SB ($23.65)
Hero ($25)

Preflop: Hero is BB with 9, Q.
3 folds, Button raises to $0.9, 1 fold, Hero calls $0.65.

Flop: ($1.90) 9, 3, 3 (2 players)
Hero ??