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Reality TV star Kim Kardashian might want to watch what she tells friends. A new rumor has bubbled online about her alleged reaction to the now-infamous Blac Chyna sex tape leak.

According to a Hollywood Life report, Kim has not only watched the x-rated footage but laughed at it.

“Kim is ecstatic that Rob was a part of Chyna’s sextape debacle,” a Calabasas insider EXCLUSIVELY told HollywoodLife.com. “She saw the video clip and she and her sisters had a huge laugh about it. They hate the fact that it’s the mother of their niece, but they can’t help the fact that there is so much animosity between their family and Chyna. Chyna has made Rob’s life hell and Kim has been quick to point out that Rob has kept himself completely out of harm’s way ever since his public spat with Chyna.” (Hollywood Life)

Yesterday, Chyna’s ex-boyfriend Mechie came forward and revealed he is the mystery man in the x-rated clip.

A rep for Mechie tells TMZ … the explicit video showing a naked Chyna performing oral sex was shot back in July. We’re told Mechie was the one who recorded the encounter, but it was all captured using Chyna’s phone. His rep says Mechie never had his own copy of the video, so he has no clue how it got out. Our sources say Mechie plans to go to cops, and wants the leaker found and prosecuted. We’re told he and Chyna have not talked since their split in August. (TMZ)

Shortly after the footage went viral, hip-hop star Lil Uzi Vert reached out to Chyna.

Earlier in the week, comedian Michael Blackson playfully trolled BC over her leak.