ryannicoletwitterjuice.jpgimages courtesy of Ryan Seacrest's Twitter

This morning Nicole Richie chatted on KIIS FM's On Air With Ryan Seacrest about the infamous green smoothie (the same one Ryan tried to get Selena Gomez to drink!) and Nic told Ryan, "I gave it to [Kim Kardashian] and she took one sip, and she thought that I was nuts. She said, 'I cannot believe that you drink this.' She was mortified ... She was like, insulted."

After the conversation, Nicole and Ryan teased Kim with a shout out and a picture, writing, "You know you want some juice @KimKardashian ... Hey @kimkardashian, don't deny the juice." Kim K. tweeted back later in the day, "You and @NicoleRichie make me want to vomit! Barf! Lol."