Kendall Jenner celebrated her 21st birthday over the weekend, and though one family member was missing from the official photos, Kirby Jenner used his own Instagram account to document the big day-- and the weeks leading up to it.
Masquerading as the "fraternal twin of Kendall Jenner," Kirby boasts nearly 400K Instagram followers, and his account showcases him alongside his famous sisters--especially his twin. From Fashion Week to Kanye's concert, see how Kirby and Kendall rang in 21.
