Worst river ever, call small bet in big pot?

[ahnuld]

Playing 1-2 nl on Prima, just lost my buy-in, guess I have a normal image, not supertight. I limp UTG with 66. Few limps, sb raises the min to 4. All call. 5 to flop

(20) Flop: 6 [img]/images/graemlins/diamond.gif[/img] J [img]/images/graemlins/diamond.gif[/img] A [img]/images/graemlins/diamond.gif[/img]

He is a little shorstacked, prob. 90 behind him. I raise to 24. All fold, he calls. Turn is a J pairing the board, giving me a FH. He checks, I bet 24 into 90 pot, trying to look weak/ milk it. He calls, River is the 3rd Jack !
Board is A J J J 6 He goes allin for his last 31. There is 144 in pot. Easy fold?