Nut flush, went for overcalls on paired board, action explodes behind

[sccrneo]

I would cap this river. Both of them will call your cap and you cant really fear the full house. While it is possible, I would imagine that you will at least see one if not both players having a 1 card flush, possibly one of the other players having a 4. With two people likely calling your cap, I think that you are getting enough overlay the times that your hand is good to make up for the times that someone hit a full house.