Talk:Family and relatives/@comment-66.57.6.66-20111106132148/@comment-74.233.16.66-20120727135008

Not necessarily, but possible. Mr. and Mrs. Cake mention having those who weren't Earth Ponies in their lineage and their children are a Pegasus Pony and a Unicorn Pony. It's not hard to imagine that sometime somewhere a pony fell in love with a different kind of pony. Otherwise, their genetic makeup would only consist of Earth Pony genes. Perhaps interracial marriage is uncommon but not unheard of (at least, it probably became so after the events that led to the creation of Hearts Warming Eve when everybody got together).