10 Real-Life Celebrity Couples That Played Brother & Sister on Television
On-screen relatives becoming off-screen couples is nothing new. One couple that is often highlighted in these instances is the pairing of Hayden Panettiere & Milo Ventimiglia, who famously dated from September 2007 to February 2009. Though, they were probably the subject of a lot of controversy more for their 12-year age gap — when she was 18, FYI — rather than the fact that they played niece & uncle on Heroes.
What’s a bit more rare, however, is when television siblings become a romantic pair IRL. Let’s break it down for you — here are 10 real-life celebrity couples that played brother & sister (albeit, not always related by blood) on the small screen:
Blake Lively & Penn Badgley
Long before Serena van der Woodsen & Dan Humphrey ever met and fell in love on Gossip Girl, her mom and his dad fell in love with each other. However, due to varying circumstances, they didn't stay together.
But, after Serena & Dan started dating (and broke up the first time around), their parents realized their love — and married each other! That means that from Season 3 to Season 5, Serena & Dan were step-siblings (or, at least thought to be step-siblings, as the marriage was declared invalid on the fifth season).
As for real life, everything seemed good and well between the two until September 2010, when they called it quits. They continued to have a professional relationship, though — even getting married on the show! — until 2012.