Are Jaime and Cersei twins?

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Tags

1. #cersei
2. #cousins
3. #lannister
4. #children
5. #illicit
6. #childhood
7. #other
8. #joffrey
9. #second
10. #affair
11. #jaime
12. #makes
13. #their
14. #continued
15. #myrcella
16. #brother
17. #tommen
18. #since
19. #romance
20. #queen
21. #siblings
22. #tyrion