[SoCalPat]

You blew it on the flop. Unless I'm holding the nut boat or better, there's no way I'm letting this many people see cards cheaply. There's 8 players to the flop. You trying to bust 'em all in one hand or something? You don't want 8 seeing the turn ... unless they're sheep or you're a masochist.

Only the weakest of weak/tight players will immediately give you credit for holding 89. And anyone with any sort of hand (trips, overpair, 2 pair) will likely re-raise you, and you'll get a player or two with just overcards along for the ride, merrily charging them a heavy price along the way to draw. You yourself said it was a loose table.

Had you reraised the turn, you could have folded with a clear conscience on the river against further aggression.

On the river, given your play to this point, you have to call. It's not out of the question for the remaining two players to be holding nothing but the two remaining 7s. With the pot this huge, it's something I'm willing to check out.