The blonde beauty posed in a red and black checked long nightshirt.

‘Cozy beyond compare. @brittanylynne wears the boucle lounge everyone’s obsessed with – the best gift for your mom, sister, and friends,’ the post was captioned.

Star power: Brittany Mahomes is seeing her fame elevated since she started hanging out with Taylor Swift  33

Swifties were shocked by Brittany’s involvement with SKIMS considering the Lavender Haze singer’s long running feud with Kim.

It all started back in 2009 when Kanye West interrupted then 19-year-old Swift at the Grammy Awards.

Later, he referred to that moment in the lyrics for his song Famous, singing: ‘I feel like me and Taylor might still have 𝑠e𝑥 / Why? I made that b**ch famous.’

When the Karma singer expressed her displeasure over the lyric, Kim released a clip of a phone call of Taylor allegedly approving the song’s lyrics.

It took four years before it was revealed the Dear Reader hitmaker had never heard the offending lyric prior to the song’s release.

BBC reported that Swift said the whole Ye / Kim incident ‘put me, my family, and my fans through hell for four years.’

‘Don’t get me wrong, it’s super cute, but I am shocked,’ one user shared in a video, adding: ‘I did not see this coming.’

Another fan responded to the video, writing, ‘Why are MY feelings hurt? Ugh. Really Brittany????’

One Swiftie commented on Brittany’s Instagram post, ‘Do you know what the owner of this brand did to your friend??? Pls stop.’

Model: The 28-year-old Texas native stars in a new holiday-themed campaign for Kim Kardashian ‘s SKIMS

Cozy: This marks the first time the former professional soccer player has stepped into the spotlight without her NFL quarterback husband Patrick Mahomes, 28

Comfy: The blonde beauty posed in a red and black checked long nightshirt. ‘Cozy beyond compare. @brittanylynne wears the boucle lounge everyone’s obsessed with – the best gift for your mom, sister, and friends,’ the post was captioned

‘100% never supporting anything a Kardashian does. And Kim is so desperate to get at Taylor, it’s laughable,’ another commented.

Another fan was more optimistic, commenting: ‘Brittany is going to single handedly solve the beef between tay and Kim k and make the world go round again.’

The truth is that ad campaigns are shot months in advance and the Mahomes family’s SKIMS shoot most likely predates Swift’s relationship with Travis Kelce, 34.

Brittany and Taylor became friends while the Shake It Off singer watched Kansas City Chiefs games with her in a luxury box at Arrowhead Stadium.