Flopped nut straight in BB. Extracting question?

[kongo_totte]

Villian is new.
Party Poker No-Limit Hold'em, $ Hero (10 handed) converter

UTG+2 ($56.8)
MP1 ($0)
MP2 ($47.85)
MP3 ($39.05)
CO ($44.45)
Button ($78.95)
SB ($59.65)
Hero ($66)
UTG ($19.3)
UTG+1 ($50.8)

Preflop: Hero is BB with 8[img]/images/graemlins/heart.gif[/img], 9[img]/images/graemlins/diamond.gif[/img]. SB posts a blind of $0.25.
UTG calls $0.50, <font color="#666666">3 folds</font>, MP3 calls $0.50, <font color="#666666">1 fold</font>, Button calls $0.50, SB (poster) completes, Hero checks.

Flop: ($2.50) T[img]/images/graemlins/spade.gif[/img], J[img]/images/graemlins/heart.gif[/img], 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(6 players)</font>
<font color="#CC3333">SB bets $2</font>, <font color="#CC3333">Hero raises to $7</font>, UTG folds, MP3 folds, Button folds, <font color="#CC3333">SB raises to $27</font>, Hero...?