Blac Chyna and “Keeping Up With the Kardashians” star Kylie Jenner have largely squashed their drama, but a mini-feud might be brewing. Chyna is reportedly upset that Tyga and Kylie stole her Ferrari birthday party idea for her son, King Cairo, TMZ wrote in an exclusive report Thursday.

Tyga and Kylie were invited to the bash Saturday, but they didn’t show up. The next day, they threw a party of their own for King and copied the one Chyna threw. Chyna reportedly spent two months planning the celebration and suspects a production staffer from her reality show, “Rob & Chyna,” leaked details of the event to Tyga and Kylie.

While King reportedly enjoyed himself and both parties, Chyna was “p---ed.”

Tyga showed off the party on Instagram. “The swaggiest littlest man doing it!!!” he wrote. “Happy 4th bday to the young legend!!!” He also posted a picture of Kylie at the event and titled it, “Family.”

If Chyna was annoyed with the situation, she didn’t show it on Instagram Tuesday. Rob Kardashian’s soon-to-be wife posted a video of their daughter kicking inside her belly. “She's turnt tonight _ 29 day left,” the reality star wrote. The clip garnered over 1 million views from her 8.9 million followers.

Here’s a little history: The two couples have a strange connection. Rob and Kylie are half-siblings and Tyga and Chyna are exes. A famous feud erupted when Kylie started to date Tyga in August 2014. They exchanged indirect blows on social media for months. That stopped when Rob and Chyna started to date in December 2015.

King Cairo is the son that Tyga and Chyna share together. Now, Rob and Chyna are going to have a child together.

Blac Chyna Blac Chyna at her Blac Chyna Birthday Celebration and unveiling of her "Chymoji" Emoji Collection at the Hard Rock Cafe May 10, 2016 in Hollywood, California. Photo: Getty Images

Follow me on Twitter @mariamzzarella