Khloe Kardashian is sticking up for her younger sisters, Kendall and Kylie Jenner, with a Twitter message reportedly aimed at Selena Gomez. Recently rumors surfaced that Gomez had ended her friendship with the Jenner sisters after partying with them at Coachella in Indio, Calif.

After returning home from the music festival Gomez unfollowed Kendall and Kylie on Instagram. She also deleted every picture the trio took at Coachella. A source told TMZ that Gomez wanted to rid her life of "toxic" people and she felt the Jenners needed to be cut.

The outspoken Kardashian posted a message on Twitter on Apr. 25 that read, "You want to play in the 20 year old pool... Well I'm still in my 20s & I'm better at this game than you. Don't f**k with my little sisters!"

The message was favorited and retweeted thousands of times and left many people wondering if it was directed at the "Come & Get It" singer after her alleged feud with Kendall and Kylie. Not only did Gomez unfollow the reality stars on Instagram but also her on-again, off-again boyfriend Justin Bieber, Taylor Swift and everyone else.

The 21-year-old currently follows zero people on the photo sharing site and hasn't uploaded a picture in a few days. A source told TMZ that Gomez had an epiphany after attending Coachella and is serious about keeping her life on track.

Reportedly at the music festival, Gomez - while hanging out with the Jenner girls and Bieber - was surrounded by alcohol and drugs.

"We're told Selena is determined to stay on the straight and narrow - focusing on music and, get this... going to church almost daily," TMZ writes.

Earlier in the year, Gomez completed a secret stint in rehab to sort out a few personal issues.

There were also rumors that Gomez ended her friendship with Kendall and Kylie because she thought Bieber cheated on her with Kylie.

"Selena is convinced something has gone on between Justin and Kylie," a source told The Sun (via Hollywood Life). "At Coachella [Justin and Selena] looked to be back on track. Selena was hanging out with Kylie too and they were behaving like best friends."

"Then [Selena] heard stuff about Justin and Kylie and felt totally betrayed," the source continued. "She went berserk and called it off again."