Tyga gifted the reality star with the giant diamond ring a few months ago

By Aurelie Corinthios
Updated November 23, 2016 09:48 AM

She may have no problem flaunting it on social media, but Kylie Jenner does get a little shy talking about that “promise ring” she got from her boyfriend Tyga a few months ago.

The Keeping Up with the Kardashians star and her sister Kendall Jenner sat down with E! News on Monday to promote their new novel, Time of the Twins: The Story of Lex and Livia, but when the conversation turned to their love lives, Kylie, 19, got somewhat bashful.

“I’m just the same!” she said. “[Tyga and I] are just chilling.”

But Kendall, 21, wasn’t about to let her sister off that easily.

“ ‘We’re just chilling,’ ” she repeated, eyebrows raised and pointedly reaching towards the giant rock on Kylie’s left hand.

“You know … this is just a little promise ring,” said Kylie with a shy smile, staring down at the bling.

RELATED VIDEO: Kylie Jenner Shows Off ‘Promise Ring’ from Tyga

Kylie and Tyga, 27, were first linked in the fall of 2014, though they didn’t confirm the relationship until March 2015. Following her 18th birthday in August that year, the two became much more open as a couple, regularly stepping out together and documenting much of their love on social media.

Notwithstanding a few brief splits, the two have been going strong ever since, and in September Kylie took to Snapchat to reveal that the sparkly diamond ring she had been wearing on that finger was a promise ring from the rapper.

“If this is a promise ring, I want to know what my engagement ring gonna look like,” she captioned a close-up shot of the rock.

And Kylie, being Kylie, returns diamonds with diamonds: When Tyga celebrated his birthday on Saturday, she gifted him with one impressive bracelet.

“60 carats for my baby,” she captioned a Snapchat video of her beau rocking the new bling.

But that wasn’t all: Kylie had a whole day of fun planned for Tyga’s big day, arranging for the duo and their crew to head out to a shooting range in Arizona, followed by a glamorous night out. Earlier in the week, she surprised her boyfriend with a birthday party planned with the help of his 4-year-old son, King Cairo, complete with cupcakes, a cake and homemade presents.