32s on the button w/ strange post-flop action

[poboys]

The table has a nice mix of 15/5's (none in this hand) and LPs . I realize the limp on the button is pretty loose, but these guys were so LP I thought it was worth it. Here's the stats on the players that matter for this hand:

BB is 10/7/1 after 100 hands,
UTG is 90/0/0.75 after 100 hands,
UTG+1 is 26/10/3 after 50 hands,
UTG+2 is 70/22/0.9 after 80 hands,

UTG and UTG+2 rarely showed aggression past the flop but would check-call all day.

Party Poker 2/4 Hold'em (10 handed) converter

Preflop: Hero is Button with 3[img]/images/graemlins/club.gif[/img], 2[img]/images/graemlins/club.gif[/img].
UTG calls, UTG+1 calls, UTG+2 calls, <font color="#666666">4 folds</font>, Hero calls, SB completes, BB checks.

Flop: (6 SB) 9[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(6 players)</font>
<font color="#CC3333">BB bets</font>, UTG calls, UTG+1 folds, UTG+2 calls, <font color="#CC3333">Hero raises</font>, SB folds, BB calls, UTG calls, <font color="#CC3333">UTG+2 3-bets</font>, Hero calls, BB calls, UTG calls.

<font color="green">UTG+2's call/3-bet really confused me here. Made me think he either had a set or a draw.</font>

Turn: (9 BB) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">BB bets</font>, UTG calls, UTG+2 calls, Hero ...

<font color="green"> BBs lead (given the aggression post-flop) confused me. Plan for turn and river? </font>