Naruto Gaiden: The Seventh Hokage and the Scarlet Spring:
They have not yet interacted in the series.
See above section.
Among the Fans
ShikaHima is a fairly new pairing to the fandom. Fans began shipping them the moment each appeared in chapter 700. Part of the reason is how they would look together. But other fans have cited the desire to see Naruto, Shikamaru, and Gaara's powerful families united by marriage.