Kylie Jenner is officially grown up, Celebrate her 18th Birthday.

Kylie Jenner is officially all grown up

Kylie Jenner is officially all grown up. 

Her boyfriend Tyga celebrated her 18th birthday and entry into adulthood Monday with a risqué photo of the reality star soaking wet in a curve-hugging dress. 

Kelie Jenner with her boyfriend Tyga

Tyga, 25, also partied with Kylie Jenner and her family at the West Hollywood nightclub Bootsy Bellows on Sunday night, surprising her with an opulent gift: a $320,0000 Ferrari.

Kylie Jenner's birthday will be a week-long affair: She's set to host a bash at the Beach Club in Montreal, Canada, where she can legally drink alcohol, on Sunday