E!'s Keeping Up With The Kardashians star Kendall Jenner has a secret boyfriend and details about her rumored beau have been revealed.

Jenner, 17, is reportedly dating her high school sweetheart Julian Brooks, according to a new report in the latest issue of Star magazine.

According to a source, the reality star/model and the college football player are  "each other's first loves." 

Brook plays for the University of Nevada, according to another report.

Brooks was spotted hanging out at Bruce Jenner's (Kylie's father) Malibu vacation home during the Fourth of July weekend. Together, Brooks and Kendall hit the beach with a group of friends to play volleyball and surf.

Rumors of Kendall's relationship with Brooks began when she wrote to him on Twitter in May, "Can't believe it's been a whole year."

Brooks later shared a picture of Kendall on Instagram. In the photo she sported a bikini and there was an accompanying caption that read, "Mah chick." 

He also wrote to a friend on Twitter about plans for a future with Kendall.

"@CALGANGJC: Mm. Kendall Kardashian is going to be my Future GF... Maybe wife haha," Brooks tweeted.

Brooks made headlines recently when he was photographed on an outing with Jenner's younger sister Kylie Jenner. When Brooks accompanied Kylie to the Corner Bakery in Calabasas, he was mistakenly identified as her new beau. After the photo of the pair went viral, it was alleged that Kylie had moved on from actor Jaden Smith.

Later, photos were published of Smith with the Jenner sisters at their father's Malibu home on the Fourth of July, which debunked the claims they had split.

Kendall has been romantically linked to Justin Bieber's pal Lil' Twist and singer Cody Simpson.

Tags: Kendall Jenner Keeping Up With The Kardashians 8