[Lethe]

Villain is loose and aggro playing probably 80% of his hands. He is not afraid to bluff.

4 limpers to me in the HJ, I call with 43s. CO, Button, and SB call, Villain checks his option in the BB

Flop (9sb): A33r
SB checks, Villain bets, 1 caller, I raise, folded to villain who calls, other guy folds.

Turn (6.5bb): A
Villain checks, I check.

River: T
Villain bets, Hero ??

Is this a ridiculously super standard call against this villain?