Khloe Kardashian says she is obsessed with her younger sister Kylie Jenner's boyfriend Jaden Smith.While the 'Keeping Up With The Kardashians' star refused to confirm if her 14-year-old sister Kylie Jenner is dating Will Smith's son, also 14, she had nothing but praise for the youngster.Khloe told Ryan Seacrest on KIIS FM: "I will say, I'm kind of obsessed with Jaden."I think he's so sweet. But I will also say they're teenagers and I really can't keep teenagers straight. You just never know. Everything is up and down, but they're definitely best friends, I can tell you that."I love Jaden. I cannot keep track of teenage love and I wouldn't expect anyone to keep track of my teenage love when I was a teenager. Why don't you ask Kylie."Khloe, 28, also revealed Kylie, Jaden and their friends have a special name for themselves.She said: "They have a group of people. There's like three boys and like four girls and they're all best friends and they're inseparable. I love that, though. I love that they have their little clique. I think they call themselves The Misfits."