JJ flops overpair in a 3way pot that was 3bet preflop

[Eihli]

and checked around on the flop
MP was about 27/9/1.3
BB 28/20/3

Party Poker No-Limit Hold'em, $ BB (5 handed) Hand History Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

BB ($200)
UTG ($58)
MP ($233.05)
Button ($403.39)
Hero ($194)

Preflop: Hero is SB with J[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/spade.gif[/img]. Hero posts a blind of $1.
<font color="#666666">1 fold</font>, MP calls $2, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero (poster) raises to $9</font>, <font color="#CC3333">BB raises to $28</font>, MP calls $28, Hero calls $20.

Flop: ($90) 3[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/club.gif[/img], 5[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
Hero checks, BB checks, MP checks.

Turn: ($90) 4[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(3 players)</font>

Hero bets 80 and plans to call a push from one player, fold if both push. BB folds, MP puts hero all-in for about 80 more