Unless MP3 is a complete maniac this is a MUST FOLD situation on the turn.

Flop is ok, but as previous posters mentioned I agree that a 3 bet here is probably the better choice mainly because you are ahead here more then you are behind.

The turn however I am not a fan. I just cant see MP3 here with anything else but at least a 5 or 7 and even if he is a maniac Button is looking like a guy with AA that just dont want to give it up so we are way behind either way. A clear fold IMO.