While young Kylie and Kendall look adorable in their costumes, it's wild to see Kris dressed as a pirate. She donned a red-and-gold dress with a white lace collar, black thigh-high boots, and a classic pirate hat.In a mirror selfie taken that year, Kardashian West is seen wearing a cheetah-print catsuit with long sleeves and a turtleneck top. The bodice of her suit was especially unique, as it was semi-sheer, made from mesh, and extended from her chest to beneath her belly button. To complete the look, Kardashian West wore a matching set of cat ears.For the Midori Green Halloween costume party in New York, Kardashian West dressed as DC Comics superhero Poison Ivy. She paired red hair with a green strapless minidress covered in fake leaves.She also donned a green eye mask and crystal-covered platform heels.Her dress featured a white strapless top covered in real shells, as well as a floor-length skirt that perfectly blended in with the event's green carpet. Kardashian West completed the look with blonde hair and layers of necklaces.In 2013, Kardashian West attended the Met Gala in a floral maternity gown designed by Givenchy. During the event, some people shared hurtful memes that compared the garment to a couch, which later made the reality star cry.Two years later, however, Kardashian West responded to the criticism by wearing the dress again on Halloween. She shared a photo of the occasion and wrote: I think I nailed the Kim K costume! . She also said in another post that the dress still fits...That year, she looked exactly like Christina Aguilera in the 2002 Dirrty music video. Kylie wore blonde hair with black streaks, a red-and-white striped bikini top, and multicolored chaps over red shorts.She even added fake piercings and gray contact lenses to look more like the musician.Dressing as the superhero Storm, Khloe donned a shiny bodysuit with a cape, knee-high boots, and chain-style gloves. It was her makeup and hair, however, that stole the show.Her silver hair perfectly matched the sparkling makeup that covered her forehead, leading to her bright white eyes — which she achieved with contact lenses.Not only did she wear white lingerie and silver heels for the dead-bride look, but Kourtney also donned a veil, crystal choker, and face makeup that made it look as though her mouth was bleeding.Her friend Stephanie Shepherd Suganami coordinated in a similar groom costume.The couples costume, which she wore with Tristan Thompson, transformed the duo into Daenerys Targaryen and Khal Drogo from the hit series.Khloe's outfit was an especially wild take on the character, as it included a brown miniskirt and an armor-inspired top with a square cutout across her chest.Wearing a green-and-black bikini top, denim miniskirt, chained belts, and thigh-high boots, Kendall looked like an adult version of Buttercup from The Powerpuff Girls. She also wore sheer thigh-high socks, a mesh crop top, a green leather jacket, and a black wig with green highlights.Hailey Bieber (née Baldwin) was also in attendance and was dressed as Bubbles from the cartoon series.She dressed as a fembot from the series' first film with a blonde wig, pink gloves, sheer baby-doll dress, and feather-embellished heels.With her pink baby-doll dress, high ponytail, and thigh-high boots, Kourtney could have been mistaken for Ariana Grande. To make her costume even more realistic, she also carried a microphone.On Instagram, Kourtney shared a photo of the outfit and wrote God is a woman, referencing the musician's 2018 hit.While holding her daughter Stormi, Kylie wore a minidress made from a fluffy material that looked like clouds. She also wore a white wig and carried a gold lightning bolt that matched her daughter's outfit.As Insider previously reported, their costumes were loaned to them by Victoria's Secret. Kardashian West wore a white lingerie set with giant Angel wings, and Kylie donned a crystal-covered bodysuit with a nude bra, heels, and smaller wings.The Daily Mail previously shared a full look of the outfits used in the photo shoot — which also included Kendall, Kourtney, and Khloe — by photographer Marcus Hyde.In addition to fairy wings and a long blonde wig, Kylie also wore an asymmetrical, strapless dress that was see-through with sparkling purple details. She also donned strappy sandals and prosthetic pointed ears.Kardashian West got her whole family in on the costume. On Instagram, she shared photos of their outfits and said: A bugs life! My costume glowed; Kanye's costume moved and was all animatronics.Rather than wearing Cruella de Vil's fur coat, Khloe donned a black-and-white dress with giant shoulder pads, a plunging neckline, and a thigh-high slit. She also dressed her daughter True in a Dalmatian costume and edited dogs into her Instagram photo.Read more:Kylie Jenner and her daughter Stormi wore matching pajamas for an adorable Halloween-themed baking tutorial'Delete this immediately': Kylie Jenner reacts to Kim Kardashian posting a throwback photo of the familyKendall Jenner posted a childhood photo where she had uneven bangs and questioned mom Kris about the haircut20 surprising things you probably didn't know about 'Keeping Up With the Kardashians'