Posted 4 minutes agoSubscribe to BuzzFeed Daily NewsletterCaret Down13 Celebs Who Dated Or Hooked Up With An Ex's Family MemberDamon Wayans, Sr. recently revealed that he previously dated his nephew's ex-girlfriend!by Kristen HarrisBuzzFeed StaffFacebookPinterestLink In any social circle, there are all kinds of unspoken rules for who you shouldn't date. For example, plenty of people would reject a friend's ex faster than you can say "ghosted.