MTV News reports that teen superstar Justin Bieber, after joking around on Twitter that Reality star Kim Kardashian is his girlfriend, had to calm his rabid fans down!

Justin Bieber has not been shy about his desire to make reality star Kim Kardashian his girlfriend. So, when the two met up at the White House Correspondents’ dinner in Washington, D.C., over the weekend, he made sure to get a picture with her. He later posted the picture on his Twitter page and called her his “girlfriend.”

Some Bieber fans, however, weren’t at all pleased with the situation and let Kardashian know as much. On Tuesday, the reality star tweeted, “Seriously Biebs! @JustinBieber I’m getting death threats from your fans! This is unBeliebable!!!” Bieber responded with a tweet to his fans saying, “Ladies calm down. @kimkardashian is a friend. a very sexy friend but a friend. no need 4 threats. Let’s all be friends and hang out often.”