From Paris Fashion Week to Penis Fashion Week.

Nicole Richie and sister Sofia struck a series of poses in matching penis headbands while celebrating the latter’s bachelorette party in the City of Light this week.

“Who said Paris fashion week was over?” Nicole captioned a series of Instagram photos “cock-umenting” the siblings’ identical weenie fascinators detailed with pink feathers.

The “Simple Life” star, 41, snapped a chic selfie of herself wearing a black blazer and oversized sunglasses that contrasted sharply with the silly headband choice.

In another photo, Nicole wore a dramatic blue cape with bell sleeves, black slacks and pointed-toe pumps while seated on a grand staircase.

Meanwhile, 24-year-old Sofia was dressed to the nines in a strapless black gown with tassels that swept her ankles, and accessorized with a chunky gold link necklace.

Several of Nicole’s fans flooded the comments section to rave over the penis headpieces.

“One of our country’s funniest people and I will die on this hill,” one person commented on her post.

“I want the same hair band,” a second person wrote, with a third agreeing, “Best ‘bunny’ ears!!🤩💖.”

“Where does one get such an iconic headband ??” another asked. (We spotted a similar style on eBay, for those interested.)

Nicole also shared that she had packed other penis-themed accessories for the girls’ weekend, including earrings dubbed “pecker piercings.”

Sofia also gave a look at her bachelorette festivities, posting photos of the delicious meals she and her friends enjoyed to her Instagram Story.

In one pic, she was seen enjoying a plate of pasta topped with caviar, and another photo showed cookies that read “Sofia’s Bachelorette Party” and “Sofia & Friends.”

Their hotel suite was decorated with pink and silver balloons, and the group enjoyed a beautiful spread of fruit and cream covered with flower petals.

The daughter of Lionel Richie and her fiánce, Elliot Grainge, got engaged in April after dating for nearly a year.

Page Six reported in April 2021 that Sofia was dating the music executive. She and Grainge, the son of Universal Music Group chairman and CEO Lucian Grainge, went Instagram-official in April 2021.

Their relationship came after Richie’s brief romance with Matthew Morton, the son of famed restaurateur Peter Morton. She also dated Scott Disick for nearly three years until their breakup in May 2020.