Omaha HI 50: To push turn or not?

[Kanis]

Played this hand against fairly aggressive opponent. On flop it was pretty obvious that he had a drawing hand. What do you like my push on turn? I thought it was more likely he had a flush draw and I had plenty of outs in river.

GAME #739948291: Omaha PL $0.25/$0.50 2007-11-29 04:46:52
Table Wormwood (Heads Up)
Seat 3: HERO ($124.16 in chips)
Seat 8: VILLAIN ($68.19 in chips) BUTTON
VILLAIN: Post SB $0.25
HERO: Post BB $0.50
*** HOLE CARDS ***
Dealt to HERO [9c Qs 9d Qh]
VILLAIN: Raise $1.25
HERO: Raise $4.00
VILLAIN: Call $3.00
*** FLOP *** [6s 9s 3c]
HERO: Bet $9.00
VILLAIN: Call $9.00
*** TURN *** [5c]
HERO: Bet $27.00
VILLAIN: Raise $54.69
HERO: Call $27.69
*** RIVER *** [Js]
*** SUMMARY ***
Total pot $135.38 Rake $1.00

Result in white:
<font color="white"> VILLAIN: wins $135.38 with a straight
Dealt to VILLAIN [2h 4c 5d Qc] </font>