Chelsea Handler Wishes Reese Witherspoon a Happy Birthday in the Chelsea Handler-iest Way

Birthdays are a big deal, especially when it's the big 4-0. Chelsea Handler knows this, and not only did she wish her BFF Reese Witherspoon a happy birthday via Instagram, but she went naked while doing so. Chelsea is definitely no stranger to challenging the social media platform's nudity standards with her NSFW snaps, but this time around, it's all for the love of Reese; the comedian and Chelsea Does star uploaded a photo of herself completely naked — save for a pair of black socks — on Tuesday, writing, "Happy Birthday @reesewitherspoon." In addition to stripping down, Chelsea also help celebrated Reese's milestone at her star-studded birthday bash in LA over the weekend, a party that also brought out Jennifer Aniston, Chris Martin, Kate Hudson, and Taylor Swift.