Now that Kylie Jenner has finally turned 18, there's a good chance that she'll be spending more time with her boyfriend Tyga, even though her family is apparently hoping for the opposite. There's a new report that says the Kardashians are none too happy that Kylie is dating the rapper and are hoping that they break up soon before it's too late.

Kylie Jenner News 2015: Kardashians Are Concerned The 18-Year-Old Is Spending Too Much Money On Boyfriend Tyga?

According to OK! Magazine on Friday, not only do they think that Tyga is a bad influence on Kylie, but that he's untrustworthy as well.

A source close to the Kardashian and Jenner family said, "The whole family is desperate for her to ditch this guy. He's been bad news from the start, but she's just too naïve to see through his lies."

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If that weren't enough, they are also suspicious that Tyga might be cheating on Kylie behind her back. There were rumors earlier this year that he had a relationship with transsexual model Mia Isabella. The two reportedly sent racy texts and NSFW pictures to each other while he was still very much involved with Kylie.

Still, that hasn't stopped Kylie and Tyga from jetting off to exotic locales all around the world together. The couple is currently vacationing in Mexico along with a handful of Kylie's friends to celebrate her 18th birthday.

The couple has been dating for well over a year now, despite the fact that Kylie was an underage minor who is nearly eight years younger than 25-year-old Tyga.

Keep up with Enstars for all the latest news on Kylie Jenner, Tyga and all of your favorite Kardashians.