[Niediam]

Preflop: Limping was fine. Fold when it's two back to you.

Flop: I hope I'm not being biased because I can see the action but if you really are sure that MP3 has AA/KK then I'd just fold because it looks like BB also has a big hand and you are going to have to pay a lot of bets to see the turn and you might not even be good if you catch.

Turn: I don't think I can fold with your redraw and the size of the pot. Hopefully BB/MP3 will be able to figure out that UTG probably has a set or straight here and won't jam. They might do it anyhow though if one of them has a set.