Should I just just call the flop with top set?

[Flipper IRL]

Very sorry about the hand history but it's ladbrokes and I don't know a converter for their software.

** Game ID 790782329 starting - 2007-07-15 16:23:38
** Royal Birkdale [Omaha] (3.00|6.00 Pot Limit - Cash Game) Real Money

- Mcping sitting in seat 1 with $389.39
- 323136 sitting in seat 2 with $1285.92 [Dealer]
- walshie sitting in seat 3 with $408.30
- FWC sitting in seat 4 with $456.88
- healthyvit sitting in seat 5 with $185.40
- miso000 sitting in seat 6 with $615.50

walshie posted the small blind - $3.00
FWC posted the big blind - $6.00

** Dealing card to walshie: Ace of Clubs, 4 of Clubs, Jack of Clubs, Ace of Spades
healthyvit folded
miso000 folded
Mcping raised - $21.00
323136 called - $21.00
walshie called - $21.00
FWC folded

** Dealing the flop: Jack of Hearts, Ace of Diamonds, 6 of Clubs
walshie checked
Mcping bet - $34.50
323136 called - $34.50
walshie ????????