Two pair vs. super nit

[cbloom]

Button is like 10/3 , a super nit, almost always folds on the flop, but is pretty aggressive when he has a hand. His 3% PFR basically means JJ+ and AK. He is NOT the type of nit who gets stuck on overpairs, he seems to be able to get off overpairs if he thinks they're beat.

What's the best line here for extraction? (SB being in the hand is an annoying complicating factor)

Party Poker
No Limit Holdem Ring game
Blinds: $0.50/$1
6 players
Converter

Stack sizes:
Hero: $115.50
UTG+1: $48.65
CO: $92.50
Button: $145.46
SB: $34
BB: $108.65

Pre-flop: (6 players) Hero is UTG with 8[img]/images/graemlins/diamond.gif[/img] 9[img]/images/graemlins/club.gif[/img]
Hero calls $1, UTG+1 (poster) checks, CO folds, <font color="#cc3333">Button raises to $5</font>, SB calls $4.5, BB folds, Hero calls $4, UTG+1 folds.

Flop: 9[img]/images/graemlins/spade.gif[/img] 4[img]/images/graemlins/diamond.gif[/img] 8[img]/images/graemlins/club.gif[/img] ($17, 3 players)
SB checks,
Hero ????