Heidi Klum is revealing her secrets on how she keeps her marriage to Tom Kaulitz spicy. "I mean we were just lingerie shopping," the supermodel, 52, tells PEOPLE exclusively ahead of her much anticipated return to Project Runway1.

Heidi Klum Gets Real About Her 17-Year Age Gap With Tom Kaulitz originally appeared on Parade. Heidi Klum didn't hold back while candidly discussing her 17-year age gap with her husband, Tom Kaulitz.

Heidi Klum opened up about the unexpected secret that keeps her marriage to Tom Kaulitz "spicy" in a candid interview with 'People' published on July 30.