It looks as though mom definitely knows best here. Momager Kris Jenner is reportedly urging her daughter, 17-year-old Kylie Jenner to "cool it" with her rumored boyfriend, Tyga. The reality television mom is supposedly not too happy that her daughter is dating the rapper, who also happens to be a 25-year-old father.

Kylie Jenner Cleavage PHOTO From Secret 'Keeping Up With The Kardashians' Malibu Shoot 

According to Radar Online on Sunday, Kylie was a no-show at Tyga's birthday party in Los Angeles over the weekend, hinting that she might be pulling the plug on their controversial relationship.

What's more, it looks like the rest of the Kardashian family wants Kylie to dump her beau as well.

Kylie Jenner & Jaden Smith PDA PHOTO, Hugged Up At 'Ender's Game' Red Carpet Premiere 

A source told the site, "They want him out. Kourtney and Khloe are doing everything they can to keep her from him."

Older sister Kim Kardashian especially disapproves of the relationship because she is friends with Blac Chyna, who also happens to be Tyga's baby mama.

The source added, "Kylie is starting to now see that he is clearly trying to ride on her current wave of fame. She is young and a beautiful girl and does not need to be getting into anything serious right now. Nor does she need a hanger-on."

Meanwhile, there was speculation that the 17-year-old might have gotten lip fillers.

The Keeping Up With The Kardashians star, who has been long rumored to have gone under the knife after debuting a new look earlier this year, posted the selfie picture of her with not only much different-looking lips, but she also looks almost identical to her sister Kim Kardashian.

Many Instagram followers noticed the difference in her appearance and commented with, "Way too much with the lips you need to stop now. You're going to ruin yourself," and "Did Kylie draw bigger lips on herself? She looks so different."

Tags: Kylie Jenner tyga kris jenner