Megan Fox wasn't the first person in her family to fall in love with Brian Austin Green.
Appearing on The Tonight Show With Jay Leno Monday, the 25-year-old Friends With Kids star revealed her older sister Kristi once had the hots for Green, now 38.
"I was on a sitcom called Hope and Faith on ABC with Kelly Ripa and Faith Ford," Fox said. "Brian was guest starring playing himself, but I was too young to have watched 90210, so I didn't know who he was. I just knew that he was gorgeous and I wanted to get to know him better."
"My older sister -- I won't say her exact age, but she's in her 30s -- she knew exactly who he was and she had been in love with him her whole life," Fox revealed. "He was like her Justin Timberlake, so it was very weird for her that I was dating him and now married to him."
"She will not appreciate me saying that," a slightly embarrassed Fox laughed. "I cannot believe I just said that on television!"
Despite not knowing much about the actor, Fox always knew Green was The One. "I was 18, but I was instantly in love with him. Everyone was sort of gathered around the monitors watching playback from his scene, and he accidentally grazed my leg with his hand. I felt an electric shocks go through my body, so I figured that meant something."
"I feel like I married my best friend. We both feel so much more comfortable being married," Fox raved of Green, who has a 9-year-old son with ex Vanessa Marcil. "I've lived with him for so long that it was a natural progression and a good next step. I can't imagine being without him."