It would have been a logical question to a brother-in-law, asking him what it was like to win the Stanley Cup, and about the moment he finally got to lift it. “I think I was too jealous to ask him those questions,” Matt Moulson told The Post yesterday, two days before his Islanders will begin the Stanley Cup playoffs in Pittsburgh against the top-seeded Penguins, just 10 months removed from Kings goaltender Jonathan Quick — who married Moulson’s sister — hoisting the coveted jug above his head. “Obviously you could see the pride in his eyes,” Moulson said. “It’s every hockey player’s dream to hold the Stanley Cup. When you see someone, especially that close to you, it lights a fire underneath you even more.” That fire is going to have to be an inferno if the eighth-seeded Islanders are to have much of a chance against the mighty Penguins. Having run away with the conference and coming up just five points shy of the Presidents Trophy, the Penguins are an enormous favorite. But that was the same for Quick’s Kings when they entered last year’s tournament as the West’s eighth seed, beating the teams seeded Nos. 1, 2, and 3 — the Canucks, Blues and Coyotes — before burying the Devils in six games in the Finals. “He had to have back surgery over the summer, so he played the whole playoffs injured, so you see what it takes to win a Stanley Cup,” Moulson said of Quick. “You have to play banged-up, bruised, whatever, to get wins. Probably one of the toughest trophies to win because every series is a grueling best-of-seven games. That has to be your mindset — that every series is going to be a tough opponent.” It could be made marginally easier if Sidney Crosby doesn’t play all the games, as the Penguins star center has missed the past month with a broken jaw. He practiced yesterday, but still isn’t cleared for contact and is supposed to meet with doctors today. “They have so many weapons,” said Islanders coach Jack Capuano after stating his preparation will not be affected by Crosby’s status. “He’s an elite player, one of the top players in the world. ... We know they’re a pretty potent offense.”