Have you read Girls on Girls yet this week? Did you love it? Do you still need more girl love? Because I have it for you: This week’s episode of Girls featured a cameo by Lena Dunham’s friend and fellow writer Alice Gregory, who also stars, alongside Lena’s sister, Grace Dunham, in a short film written and directed by Lena for another girlfriend, designer Rachel Antonoff. The fashion film (and for once this means equal parts fashion and film) is a David Attenborough—style natural history of best (girl) friends that’s like The Life Aquatic with Steve Zissou meets Girls with Walt Stillman’s stilted dialogue and Spring 2013 Antonoff fashion. Watch it now exclusively on Style.com.