QQ in multiway pot, do I bet the river here?

[JEM7VSBL]

Party Poker 0.50/1 Hold'em (10 handed) converter (http://www.selachian.com/tools/bisonconverter/hhconverter.cgi)

Preflop: JEM is CO with Q/images/graemlins/spade.gif, Q/images/graemlins/diamond.gif. MP1 posts a blind of $0.50.
UTG calls, UTG+1 folds, UTG+2 folds, MP1 (poster) checks, MP2 folds, MP3 calls, <font color="CC3333">JEM raises</font>, Button folds, SB folds, BB calls, UTG calls, MP1 calls, MP3 calls.

Flop: (10.50 SB) 7/images/graemlins/heart.gif, 6/images/graemlins/spade.gif, 9/images/graemlins/club.gif <font color="blue">(5 players)</font>
BB checks, UTG checks, MP1 checks, MP3 checks, <font color="CC3333">JEM bets</font>, BB calls, UTG folds, MP1 calls, MP3 calls.

I'm not too worried about a straight here, so I fire away.

Turn: (7.25 BB) K/images/graemlins/heart.gif <font color="blue">(4 players)</font>
BB checks, MP1 checks, MP3 checks, <font color="CC3333">JEM bets</font>, BB calls, MP1 calls, MP3 calls.

The king was not a card I wanted to see...and all 3 players called...

River: (11.25 BB) 2/images/graemlins/club.gif <font color="blue">(4 players)</font>
BB checks, MP1 checks, MP3 checks, JEM checks.

Final Pot: 11.25 BB

Results in white below: <font color="white">
BB shows 8h 9h (one pair, nines).
MP1 shows 6h 5d (one pair, sixes).
MP3 shows Qc 9s (one pair, nines).
JEM shows Qs Qd (one pair, queens).
Outcome: JEM wins 11.25 BB. </font>


I check through on the river here thinking one of them paired the king...is this a weak play in this situation? Would I save more bets than lose here by checking?

[Piiop]

Bet the river. The 2 /images/graemlins/club.gif didn't complete any straights/flushs/2 pairs. It is possible someone has a K or 2pair and is too weak to raise but there's no reason to miss out on a bet for all the times you're ahead. Don't be afraid to bet.