Kylie Jenner spent some quality time with Rob Kardashian and Blac Chyna's new daughter over the weekend.

The 19-year-old reality star cuddled up to niece Dream Renee on Saturday and shared a video of herself holding the 1-month-old infant on Snapchat.

Rob -- Jenner's half-brother -- and Blac Chyna -- his fiancee -- welcomed Dream on Nov. 10. Jenner said in an interview with E! News the same month that seeing photos of the baby nearly moves her to tears.

"The photos with Rob and his daughter literally make me want to cry," she gushed. "All the photos make me want to cry -- the family photos, the photos of just her -- but it's really sweet. She's so cute."

Blac Chyna, who also shares 4-year-old son King Cairo with Jenner's boyfriend, Tyga, is presently battling Rob's sisters over their family name.

TMZ reported last week that Kourtney, Kim and Khloe Kardashian are opposing Blac Chyna's request to trademark "Angela Renee Kardashian."

"Chyna filing and using their last name takes some time and discussion," a source recently told Us Weekly. "They are hoping to resolve it amicably, the girls, because they do love Chyna."

"The girls are just protecting their interests because that is their brand," the insider explained. "It's a complicated business issue."

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Kourtney, Kim and Khloe's companies claim that Blac Chyna's trademark would cause them to "suffer damage including irreparable reputation and goodwill."

They also say the mom-of-two is "deliberately seeking to profit from the goodwill and popularity" of the Kardashian name.