NL25 98s

[parturi]

Button is a solid player 24/12/3 after ~~100 hands, hasn't done anything out of order yet. So what is my line in the river? Am I still firing? His river af is way bigger than flop/turn, so if I check he is pretty much always betting here.

BB ($53.90)
UTG ($22.05)
UTG+1 ($23.95)
Hero ($21.05)
Button ($25)
SB ($59.80)

ANTES/BLINDS
SB posts blind ($0.15), BB posts blind ($0.25).


PRE-FLOP : Hero has 9h 8h
UTG folds, UTG+1 folds, Hero bets $1, Button calls $1, SB folds, BB folds.

FLOP: : 6d 8s 2c
Hero bets $2, Button calls $2.

TURN [board cards: 6d 8s 2c 2d
Hero bets $4, Button calls $4.

RIVER [board cards: 6d 8s 2c 2d 2s
Hero ???