As the weather heats up, the stars come out to play together. This week, celebrities chronicled their Summer preparation by taking sunny vacations in their bikinis , hanging out with friends, and even riding motorcycles! Some didn't get too tropical, though, like Chrissy Teigen, who covered up in a fun Medieval Times costume, and Reese Witherspoon  and Sofia Vergara, who worked on their makeup indoors. Keep reading to see the rest of this week's cutest celebrity candids, and be sure to follow POPSUGAR on Instagram , Facebook , and Twitter !
James Franco  rode a motorcycle with Amber Heard and her dog, Pistol, on the Adderall Diaries set.
Source: Instagram user jamesfrancotv 
Kim Kardashian  showed off her wedding  band in a makeup-free selfie.
Source: Instagram user kimkardashian 
Drew Barrymore  sipped straight out of a coconut.
Source: Instagram user drewbarrymore 
Chrissy Teigen had fun with friends at Medieval Times.
Source: Instagram user chrissyteigen 
Nina Dobrev  goofed around with Jessica Stam and Jessica Szohr .
Source: Instagram user ninadobrev 
Gisele Bündchen  relaxed with her daughter, Vivian, at the lake.
Source: Instagram user giseleofficial 
Jessica Simpson  celebrated her friend Lauren Zima's baby shower.
Source: Instagram user jessicasimpson 
Kourtney Kardashian hung out with friends in her bikini and overalls.
Source: Instagram user kourtneykardash 
Victoria Beckham  decorated a photo of her husband, David Beckham . Yes, those are ants crawling on him.
Source: Instagram user victoriabeckham 
Hilary Duff  channeled her inner Sia with a bob wig.
Source: Instagram user hilaryduff 
Lupita Nyong'o jumped around on vacation.
Source: Instagram user lupitanyongo 
Emmy Rossum rode a motorcycle.
Source: Instagram user emmyrossum 
Lea Michele  rocked a bikini while she lived it up in Hawaii .
Source: Instagram user msleamichele 
Sofia Vergara did Reese Witherspoon 's makeup on set.
Source: Instagram user reesewitherspoon 
Miley Cyrus  snuggled with her sister Noah.
Source: Instagram user mileycyrus 
Katy Perry relaxed in her bikini  on vacation.
Source: Instagram user katyperry 
Nina Agdal, Chrissy Teigen, Jessica Alba , Lily Aldridge, Jaime King, and Rosario Dawson  had fun at the Guys Choice Awards .
Source: Instagram user jessicaalba 
Lucy Hale and Ian Harding were silly on the Pretty Little Liars set.
Source: Instagram user lucyhale