Kim Kardashian and Kylie Jenner
Kim Kardashian (L) used to joke that Kylie Jenner (R) would be a mom by Season 17 of “Keeping Up With the Kardashians.” In this photo, the TV personalities arrive at the 2013 MTV Movie Awards at Sony Pictures Studios on April 14, 2013 in Culver City, California. Getty Images/Alberto E. Rodriguez

Kylie Jenner, a few days before turning 22, boarded a private plane to Italy to commence the lavish celebration of her Birthday which will be held in a $250 million worth yacht en route to Mediterranean Sea. Of course she had her company, but her sisters’, including Kim Kardashian, absence on that plane raised the fans curiosity.

Jenner’s company included Travis Scott and their daughter, Stormi Webster; Kris Jenner and her beau, Corey Gamble; her new BFF Sofia Richie and boyfriend/Kylie’s ex-brother-in-law, Scott Disick; and her friends, Stassi Karanikolaou and Yris Palmer, TMZ exclusively reported.

Kourtney Kardashian is reportedly enjoying her European tour but expected to rendezvous at the venue party at some point.

There were speculations that Jenner and Scott could get married because of what seemed like a wedding gown seen boarding the plane along with her entire entourage. The wedding assumption was immediately refuted as multiple Kardashian-connected sources told TMZ that the make-up mogul won’t get married in the trip.

Furthermore, the report suggested that it could be a prank because Jenner was known for messing with people and she knew that there would paparazzi all over. Another source reportedly said that definitely there won’t be a wedding because the Kardashian sisters [Kim and Khloe] won’t be joining the trip.

Although it wasn’t clear neither was it ascertained whether or not the two Kardashian sisters would appear to the party, what people know is that the 38-year-old reality star is enjoying her family vacation in Japan.

Kardashian and husband, Kanye West, brought their two kids to the land of the rising sun for summer vacation. Snaps of her and 42-year-old rapper, together with their 6-year-old daughter, North West, and 3-year-old son, Saint West, were then uploaded by the “Keeping Up With The Kardashians” star in her Twitter account (@KimKardashian).

The Kardashian – West family also went to TeamLab Borderless Digital Art Museum in Tokyo, PopSugar reported. Meanwhile, Kylie Jenner and Travis Scott spent some quality time by having a couple’s date night in Italy before her mega-yacht birthday celebration, People reported.

It was previously reported that the Jenner’s family and some friends would be cruising the Mediterranean Sea on Tranquility — a 300-foot long yacht with Jacuzzi, sauna, pool, bar, steam room, suites and more. And though Kim Kardashian’s attendance to the party needs confirmation, it wouldn’t be such a hassle if she decides to go since the lavish boat has a helipad.