If you’ve ever wondered why there are so many celebrity couples walking around who look like siblings, there’s a sociological explanation for that. Apparently, humans are more likely to be attracted to things that look similar to them. And, if you happen to be of the more attractive variety, hooking up with someone who looks like you means you won’t tarnish your precious “gene pool.”
I guess that sort of makes sense, but that still doesn’t make these brother-and-sister-looking couples any less creepy:
1
Benedict Cumberbatch and Sophie Hunter
2
Blake Lively and Ryan Reynolds
3
Rochelle and Marvin Humes
4
Alexis Bledel and Vincent Kartheiser
5
Allison Williams and Ricky Van Veen
6
Courteney Cox and Johnny McDaid
7
Cynthia Nixon and Christine Marinoni
8
Jack and Meg White
9
Katie Holmes and Tom Cruise
10
Reese Witherspoon and Ryan Phillippe
11
Brooklyn Beckham and Chloë Grace Moretz
12
Tom Brady and Gisele Bündchen
13
Sharon and Ozzy Osbourne
14
Pete Davidson and Cazzie David
15
Joe Jonas and Camilla Belle
16
Luann and Kirk Van Houten
Source : https://www.distractify.com/entertainment/2018/08/17/1wCVa5/celebrity-couples-look-like-siblings