About Rapper Tyga & Blac Chyna's Sex Tape...

Her soon-to-be sister-in-law Kim Kardashian is famed for her sex tape leak.

And Blac Chyna is allegedly doing everything in her power to stop herself from befalling the same fate and is desperate to stop her on-camera romp with ex-fiancé Tyga from hitting the internet.

The 27-year-old star - who is engaged to sock designer Rob Kardashian - is planning to take legal action should her X-rated antics surface online, according to TMZ.