The 20-year-old jetted to Sin City and was spotted wearing an oversize shirt and pvc pants as she made her way to see her rapper boyfriend perform.
Scott, 24, was playing at the iHeartRadio Music Festival after jetting in from Miami.
It has been a busy weekend for the reality star after news broke that she was reportedly pregnant with a baby daughter on Friday.
So far, her famous family have stayed tight-lipped about the news with her mom Kris Jenner claiming that she was surprised at the story.
Kylie also celebrated her friend Jordyn Woods 20th birthday this weekend by gifting her a new SUV before takng her to Las Vegas.
Since the news broke Kylie has been wearing loose fitting clothes amid rumors that she is three to four months pregnant and expecting a baby girl with rapper her boyfriend of just four months.
Kylie was back on social media this weekend too. Interestingly, she posted one image from Vegas wearing a white robe tied tightly around her stomach as she posed with a group of girlfriends.
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