Heidi Klum's model daughter Leni, 16, exchanges Valentine's Day 'I love you' messages with boyfriend

Heidi Klum shows off huge bouquet of red roses before dancing with Tom Kaulitz on Valentine's Day

Alex Rodriguez Surprises Jennifer Lopez With Rose Petals, Candles & More For Lavish V Day: ‘I Love You’

Valentine's Extravaganza! Love-smitten couple Heidi Montag and Spencer Pratt shop Rodeo Drive