What's the best way to play the river here?

[EnderW27]

I'm in BB with K6o. Blinds are at 25/50 and there are four limpers to me. I check. Pot's at 250.

Flop comes [ Js, 4s, 9c ]

Wow...did that ever hit my hand. I check.

It's checked around.

Turn: 6h

Like third pair excites me. I check.

Guy next to me bets 50, which I have to assume is just a feeler bet to see if anyone else wants this pot. He has about 500 more in front of him. One other person calls (not sure his stack size but it's between 500 and my ~1100) and I figure...eh, 7:1 odds to see what the river brings me. Why not?

River: Kd. The perfect card. Two pair AND no flush made it.

Now what?

[Bigwig]

I'm almost positive you have the best hand here, but what can you get from betting? Not much, you're only likely to be called on a big bet from someone who might throw one back at you that makes you uncomfortable.

I most likely check and call.