Read next on IOL. Former Springbok rugby player's daughter killed in horror N2 crash. Blac China Sex Tape www. Blac Chyna - who has children King Cairo, five, with former partner Tyga, and Dream, 14 months, with ex-fiance Rob Kardashian - is shown performing oral sex on a mystery man in a 1 Chyna sex tape, 23 seconds long clip which was posted early on during the early hours 19 February by an anonymous Twitter account. It was later revealed the mystery man was Chyna's ex-boyfriend, Mechie, but both parties Chyna sex tape that they were not responsible for the leak. Celebrity - Alyson Hannigan Sex Tape.