Klum takes her exuberant children Leni, 5, and Henry, 3, for playtime in an N.Y.C. park. Halle & Nahla, Lauren Conrad, Reese Witherspoon and more

PLAY DATE

Jump for joy! An expectant Heidi Klum goofs off with children Leni, 5, and Henry, 3½, at a New York City park on Tuesday.