Reads: MP3 is total donk. CO is 17/12/3 through 2300 hands and is a regular.

Full Tilt No-Limit Hold'em, $4 BB (9 handed) Full-Tilt Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

saw flop|saw showdown

UTG+1 ($83.55)
Hero ($400)
MP2 ($1095.50)
MP3 ($417.60)
CO ($910.20)
Button ($194.50)
SB ($400)
BB ($1005.10)
UTG ($800)

Preflop: Hero is MP1 with Q, Q.
2 folds, Hero raises to $12, MP2 calls $12, MP3 calls $12, CO calls $12, 2 folds.

Flop: ($52) 9, J, 2 (5 players)
Hero bets $36, MP2 folds, MP3 calls $36, CO raises to $116, Hero...

I put MP3's range on ATC that hit the board and I want him in the pot. CO here either has monster draw or set. What to do and if we call what's our turn plan?