Kylie Jenner holds hands with Stormi, four, at investor party for sister Kendall's tequila brand 818

See Kim Kardashian, Kylie Jenner and More Step Out to Support Kendall Jenner's 818 Tequila Event

Kim Kardashian joins sisters Khloe and Kylie Jenner at an 818 Tequila investors event in LA

Watch Stormi Adorably Lip-Sync to Her Dad Travis Scott’s Song Alongside Kylie Jenner