200NL 6 max : WTF?! spot

[VPIP100]

Everest Poker No-Limit Hold'em, $1.00/$2.00 (HH Converter by Kreatief)

MP3 ($154.60)
CO ($109.00)
Button ($375.90)
SB ($340.75)
BB ($452.45)
MP2 ($218.95) (Hero)

Preflop: Hero is MP2 with K[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/heart.gif[/img]
<font color="#666666">2 folds</font>, Button calls $2.00, <font color="#666666">1 folds</font>, Hero checks,

Flop: Q[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img] ( $5 )
Hero checks, Button checks,

Turn: 9[img]/images/graemlins/spade.gif[/img] ( $5 )
<font color="#CC3333">Hero bets $5.00</font>, Button calls $5.00,

River: 2[img]/images/graemlins/club.gif[/img] ( $15 )
<font color="#CC3333">Hero bets $15.00</font>, <font color="#CC3333">Button raises to $60.00</font>, Hero ???

Villain raises 99+ and would probably raise a 9 on the turn with all those draws. I never seen him do anything out of line (bluff raising etc).

Im confused, so I call?