They have yet to take their romance public but Kylie Jenner and Tyga may have already said "I Do". The reality star has ignited speculation that she is secretly married to the Young Money rapper after posting a series of pictures on Instagram showing her with a new diamond ring on her wedding finger.

In one of the images, which has since received over a million likes, the focus is on the jewellery on her left hand as she strikes a sultry pose. Unsurprisingly the online community had lots to say:

To add fuel to the fire, the 17-year-old appeared to drop a major hint that she was now Mrs Tyga during the premiere episode of I Am Cait. In the scene where Caitlyn's mother Esther was seen giving her granddaughter a photo of her 17-year-old self, the teenager notes that they look alike. "I definitely take the Jenner side," she told the 89-year-old.

But when Caitlyn says: "Here's the kicker, she was 17 years old in this picture, and she was married', Kylie lets slip: "Kind of like me."

If Jenner and Tyga, 25, are indeed hitched, one person who likely gave her blessing is half-sister Khloe Kardashian. She recently defending the couple's alleged romance in her interview with Complex magazine.

king kylie

A photo posted by King Kylie (@kyliejenner) on

"I think at 16 I was probably f*****g someone that was in their twenties, for sure. I wouldn't say I was even dating, probably just sleeping with them," she tells Complex Magazine.

"But again, Kylie is not a normal 17-year-old. You're not gonna say, 'Hey, so what are you doing this weekend?' and have her say, 'Having a slumber party at my girlfriend's' or 'Going to prom.' That's not what Kylie does.

"Kylie is taking business meetings and bought her first house, or she's going on a private place with Karl Lagerfeld to take a meeting. That's not even what people do in their thirties. It's a rare circumstance, so let's treat this as a special case."