Kim Kardashian has gifted her new co-stars salmon sperm facials

Kim said she curated the bags herself as an early Christmas gift, filling them with products from her own brand Skims alongside Balenciaga and Gucci.

The salmon sperm facial was included in the form of a voucher for the viral beauty treatment made popular by celebrities including Jennifer Aniston.

In an interview with People magazine, Kardashian explained she had personally selected each item for the women in the cast.

Referring to her sister, she said: "Kourtney went to go get a facial yesterday at the salmon-sperm place, and they said, 'Oh, well, none of the girls have used it, so I'm going to give you a free one.'

"I was like, 'Why wouldn't you get it?!'"

Her All's Fair co-stars reacted in surprise when the topic came up.

Teyana Taylor said: "Wait, I was so excited about the gifts, I don't think I opened the envelope. It was some salmon sperm in there? Girl, why didn't you say that?" - to which Niecy Nash-Betts replied: "I'm using mine!"

The conversation took place as part of the show's promotional run, which has seen the cast travelling together for appearances and interviews.

Days earlier, Kim said she had borrowed lubricant from Naomi Watts' beauty brand Stripes to help her get into latex thigh-high boots during filming - a moment which quickly went viral online.

Last summer, Kim revealed on The Kardashians she had undergone the same treatment herself.

She said: "I got a salmon sperm facial with salmon sperm injected into my face."

Her sister Khloé Kardashian also spoke about trying the procedure in another episode, saying: "I do the salmon sperm (facials), but I'm never gonna do whale sperm."

Kim also recently joked her All's Fair co-star Sarah Paulson has been "proudly" wearing the brand's new Skims merkin thongs, while fellow star Glenn Close had "missed" the Stripes lube handout during a group fitting.