Kendall and Kylie Jenner on mommy duty...(photos)

Motherhood may be furthest from their mind now but that hasn't stopped Kendall and Kylie from practicing their mothering skills with nephew, Reign. On Saturday, Kendall Instagrammed a photo of herself with her nearly one-year-old nephew Reign on her hip as she scrolled through her phone, which she captioned, 'Me as a mom.' Kylie, 18, also Instagrammed a playful video of herself and Kendall supervising their nephew, which she captioned, 'the cool aunts.'