This week in the world of social media, it was all about spending time with fashionable friends and sharing sweet snaps along the way. Poppy Delevingne and Henry Holland played a game of telephone (with sparkly heels, no less), and Sienna Miller snuggled with her baby girl, Marlowe, during a daytime birthday party. Coco Rocha set sail across the Sydney Harbour as fellow model Bar Refaeli shaded her face from the sun during a beach day. Prabal Gurung posed with his high-profile celebrity pals at his Vogue x MAC Cosmetics event (just imagine being able to call Zoe Saldana and Diane Kruger your friends!), while BFFs Karlie Kloss and Jourdan Dunn hit the kitchen for a cooking segment. Cara Delevingne shared a snap of the "weirdest breakfast ever" — and can you guess which model mom got back to nature with a horseback ride to the beach?