I have about 275 hands on villian, and his aggression factor is 0.68. Can I call this bet, or is this a bigger straight every time?

Poker Stars
Pot Limit Omaha Ring game
Blinds: $0.10/$0.25
7 players


Stack sizes:
UTG: $31.70
UTG+1: $15.50
MP1: $17.45
CO: $13.60
Button: $22.85
SB: $7.80
Hero: $31.75

Pre-flop: (7 players) Hero is BB with
3 folds, CO calls, Button calls, SB folds, Hero checks.

Flop: ($0.85, 3 players)
Hero bets $0.85, CO calls, Button raises to $4.25, Hero calls, CO folds.

Turn: ($10.2, 2 players)
Hero checks, Button bets $9.7, Hero ?????

I've got the dummy end of the straight, a 9-high flush draw, and a so-so low draw. Villian has about $8-something left after his bet, so I might as well put him in if I'm going to call...

Do you think he had a 9TJK kind of wrap? This looks more like a set to me, perhaps with spades. If he does have a higher str8 you still likely have a live low draw for half, so I push him the rest of the way in here.

Fold the flop as quickly as possible. This is a trap hand where its hard to win a lot of money but easy to lose a lot of money. Button just showed a lot of strength by raising the flop so a PSB on most turns is likely. What turn cards will make you comfortable calling a pot sized bet knowing there may be another bet on the river.