Dakota Johnson's stint as host on "Saturday Night Live" this week was the occasion for a little family reunion. During her opening monologue, Johnson revealed that her father, Don Johnson, proposed (for the second time) to her mother, Melanie Griffith, after Griffith hosted "SNL" in 1988. Dakota, who was born nine months later, joked that she "must have been conceived that night after the show, or maybe even during the show." But just to be sure, the "Fifty Shades of Grey" star had the opportunity to confirm with her parents, who were sitting in the audience.