88 Flops set, correct slow play?

[_Kevin_]

Table is a bit loose but this was unusual to have this many to the flop. I didn't raise because I figured my pot equity was low with so many players and the likelyhood of an overcard hitting someone (I felt I needed to hit a set to win). Raising the flop wouldn't protect my hand so I figured a 2 bet on the turn was a better play. Comments on all streets please.

Party Poker 2/4 Hold'em (9 handed) converter

Preflop: Hero is CO with 8[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/diamond.gif[/img].
UTG calls, UTG+1 calls, MP1 calls, MP2 calls, MP3 calls, Hero calls, Button calls, SB completes, BB checks.

Flop: (9 SB) 4[img]/images/graemlins/club.gif[/img], 6[img]/images/graemlins/heart.gif[/img], 8[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(9 players)</font>
<font color="#CC3333">SB bets</font>, BB folds, UTG calls, UTG+1 calls, MP1 calls, MP2 calls, MP3 calls, Hero calls, Button folds.

Turn: (8 BB) K[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(7 players)</font>
SB checks, <font color="#CC3333">UTG bets</font>, UTG+1 calls, MP1 folds, MP2 folds, MP3 calls, <font color="#CC3333">Hero raises</font>, SB folds, UTG calls, UTG+1 calls, MP3 calls.

River: (16 BB) J[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
UTG checks, UTG+1 folds, MP3 checks, <font color="#CC3333">Hero bets</font>, UTG calls, MP3 folds.

Final Pot: 18 BB