Fun Photos! Go Inside Kylie Jenner's 18th Birthday Celebrations

— -- Kylie Jenner turns 18 today, but she's been celebrating all weekend.

The "Keeping Up With the Kardashians" star kicked off the festivities by volunteering at Children's Hospital Los Angeles and toasted her big day with friends and family last night.

"MY GIRLS. party night. #18@12," she captioned a group shot.

Kourtney, Kim and Khloé Kardashian, and Caitlyn and Kendall Jenner were all on hand to ring in the teenager's big birthday, as was Kim Kardashian's husband, Kanye West. There were plenty of gifts to be had, too.

Jenner was the lucky recipient of a luxe Hermès bag and, according video captured by TMZ, a Ferrari from rapper Tyga.

"I'm like 'hey, what's up, hello'"

"Trap Queens"

"MY GIRLS. party night. #18@12"

"and it's not even my birthday yet"

"The festivities are just beginning!! My baby girl is going to be 18!!! I'm legit going to cry I love you Ky!"

"Squad goals"

"let the birthday celebrations begin! First stop: @childrensla"