10 Celebrity Couples Who Fell in Love After Playing Onscreen Siblings

During Shannen Doherty's tenure on Beverly Hills, 90210, the actress was well known for causing drama on set, but she also made time to date her onscreen twin brother, Jason Priestley. In addition to being photographed making out on the red carpet at the Emmys in 1991, Jason commented on all of the behind-the-scenes hookups on 90210 while promoting his memoir, telling Access Hollywood that "nobody ever got attached. We never let it get in the way what we were doing. I will let you know that nobody ever got — work always superseded everything."