Board Thread:Theories and Speculation/@comment-3568954-20150210145020/@comment-25632268-20150210193222

Naruto uzu6254 wrote: Naruto's whisker marks may be influenced by Kurama's chakra when the Jinchuriki's seal was weak during child labour.

Kushina said that when female jinchuuriki gets pregnant, her chakra is slowly redirected towards the child and that's why seal becomes weaker. But it is still human's chakra that goes to child. And even if Kurama's chakra could influences Naruto when he was still in his mother's womb it should has nothing to do with Himawari and Boruto as they were born from normal woman.