Easy river bet?

[MichaelOar]

15/30. I am BB with 7s3d. UTG, semi-loose, semi-aggressive, very FPS-afflicted player limps. All fold to SB who completes. I check.

Flop is:
Jx 7h 3h

SB bets, I raise, UTG cold calls, SB calls.

Turn is 8x

SB checks, I bet, UTG calls, SB folds.

River is 9x . . .

Thanks,

Michael