VIDEO : Kendall Jenner & Bella Hadid Vacation Off Together

Kendall Jenner and Bella Hadid are to blame (yet again) for your latest case of Instagram envy. The model duo just posted snaps from their joint vacation, flaunting clear-blue waters, a yacht, a jet ski ride and their bikini-clad bods. The photos arrive just after Kendall shared that she's actually been friends with Bella longer than she's been friends with Gigi (who doesn't appear in the vacay photos). "Gigi and I just started getting close when we started modeling, but Bella and I were actually really good friends since high school, and hung out everyday in school before either of us started working," she said.