Board Thread:Naruto Discussions/@comment-26508646-20150705183625/@comment-25549954-20150705202541

Yep Naruto was born with whiskers, because Kushina was the Jinchūriki, same case here the children of Naruto have whiskers because Naruto is jinchūriki of Kurama. Ginkaku and Kinkaku had whiskers because they ate Kurama's flesh and they have version 2 forms because of its chakra. So there is a possibility that Boruto and Himawari have Kurama's chakra.