Heidi Klum covered her baby bump with a flowy top last night as she headed out to see her husband Seal perform in Miami. It was only last week that he announced at a concert in NYC that Heidi is pregnant again, and she's already opening up about their forthcoming child. Heidi said, "We'd be happy with either [gender]. But it would be a lie if I said we all weren't hoping for a little girl — especially Leni, because she would love to have a little sister. . . . She'll say, 'I hope it's a girl so she can be in my room, and I'm going to help you and I'm going to change the diapers and I'm going to be a really good sister!'" Boy or girl, Heidi and Seal's fourth child sounds like a great opportunity to celebrate their growing family with a sibling shower.