Keeping Up With the Kardashians reality star Kendall Jenner, 17, is lashing out against rumors that she's dating 21-year-old rapper Young Jinsu via Twitter Credit: Rob Kim/Getty Images; Ryan Miller/Getty Images

Does Kendall Jenner have a new guy in her life? Not so fast! The Keeping Up With the Kardashians star denied rumors that she was dating 21-year-old rapper Young Jinsu quickly after the speculation surfaced. 

"Enough with the rumors!" the 17-year-old model wrote via Twitter on Thursday, Oct. 17. "I'm single, people," she wrote with a smiley face.

The rapper, 21, recently sparked rumors about a possible romance between the two when he posted a photo of a brunette beauty -- said to be Jenner -- on his personal Instagram. In the snapshot, the two new lovebirds posed in front of a sunset backdrop with only their silhouettes revealed. 

Whelp, it looks like sister Kylie, 16, and her beau Jayden Smith, 15, won't be joining in for a double date any time soon.