Kylie Jenner “couldn’t be more grateful” she met Jaden Smith.
The half-sister of Kim Kardashian gushed over Will Smith and Jada Pinkett Smith’s son on Monday as he celebrated his birthday.
It is rumoured the teenagers are an item, but the speculation about the true nature of their relationship has not been confirmed.
According to Kylie, the 15-years-olds get along very well.
“Although we can't remember exactly when we met, I couldn't be more grateful that we did,” she wrote on Instagram. “You understand me like not many do & you always know the right time to make me laugh.”
Kylie also explained her pal is the perfect gentleman.
She revealed Jaden always displays excellent manners and treats her with the utmost respect.
“And no, you haven't failed once to catch me when I attempt to walk or open the door on my every entrance,” she continued. “Happy birthday to my best friend.”
Jaden has denied romancing Kylie in the past, however they were spotted enjoying a movie date last month.
The couple watched Brad Pitt’s zombie blockbuster World War Z in Calabasas, California.
They made their way out of the cinema with their hands linked, before letting loose after paparazzi started taking pictures of them.
Kylie is the youngest offspring of Kris and Bruce Jenner, who also have daughter Kendall, 17.
Her other half-siblings include Khloé, Kourtney and Rob Kardashian and the whole clan appear on E!’s Keeping Up With the Kardashians plus various spin-off shows.
Jaden, whose little sister is singer and actress Willow, starred this year as Kitai Raige in sci-fi motion picture After Earth with his father Will.
