PHOTOS Kirby Jenner is Kendall’s fraternal twin and the Andy Kaufman of Instagram
Kirby Jenner has become just enough of a social media phenomenon to pick up a sizeable following and a fair bit of acclaim, but not big enough to blow up his (her?) carefully crafted joke. Which joke is that Kirby Jenner is actually the fraternal twin of Kendall Jenner, who is currently best-known for parlaying…