We all know Jimmy Fallon loves to laugh, but no one makes him smile ear to ear quite like his wife, Nancy Juvonen. The couple first met on the set of 2005's Fever Pitch and have been showing off their sweet romance ever since. The two tied knot in December 2007 and are now parents to 6-year-old daughter Winnie and 5-year-old daughter Frances. Whether they're sharing a kiss on the red carpet or simply giving each other heart eyes, it's clear they share a lot of love for each other. I mean, just look at their adorable The Tonight Show: At Home interview! Get ready to swoon over their most lovey-dovey moments ahead.