Kylie was recently named the youngest self-made billionaire ever by Forbes magazine, with her beauty empire Kylie Cosmetics estimated to be worth $900 million.
According to TMZ, the beauty mogul has spent a fortune hiring the super yacht.
The reality star, who will turn 22 next Saturday, is said to have splashed the cash to throw her biggest birthday party to date with the Kardashian clan and pals.
The 300-ft vessel boasts rooms for 22 guests including a master suite and three VIP state rooms, a spa, a beauty salon, a cinema, a gym, a deck-pool, an outdoor bar, its own helipad and is serviced by a 29-strong crew.
Kylie Jenner, who is promoting her new beauty product in style by donning Moschino’s AW19 collection.
Mary-Kate opted for an oversized blue shirt that she wore over baggy, dark blue pants.
Heidi's blonde locks were brushed into a sleek, straight style, while a chic white veil was fastened to the back to complete her wedding look. Heidi wore a gorgeous off shoulder dress designed with puff sleeves and a sweetheart neckline. It’s fitted with an empire line that billows out to a pleated full skirt, which is designed from intricate lace that is decorated with floral embellishment.
Kylie was pictured in a vibrant orange shirt dress that she left unbuttoned to highlight her prominent cleavage.
The dress had a cross-over off-shoulder design which showed off her glowing skin and cinched her in at the waist. 
