They've known each other since Kim Kardashian was her assistant. But it was original sex tape girl Paris Hilton asking for help this time, as she gave Kim a cameo in her latest music video on Thursday. The 38-year-old reality star took a break from her grueling legal studies to join the shoot in West Hollywood, California. Metallics: Paris Hilton gave Kim Kardashian a cameo in her latest music video on Thursday They go way, way back: The friends of 20 years were in step on the set Giving it their best: Both ladies still looked in great shape even though they are nearing 40 Both Kim and Paris flashed plenty of side-boob as they shimmered in silver, whilst walking on set. Paris revealed the KUWTK star was making a cameo in the video on her Instagram. She captioned a picture, which gave a heavy clue as to the title: '#SecretProject with @KimKardashian. I can’t stop looking at my #BestFriendsAss.' Glam: Both Kim and Paris flashed plenty of side-boob as they shimmered in silver, whilst walking on set Revealing: They looked gorgeous in silver Paris had a black bra visible under her sparkly dress. She flashed plenty of leg, and sported towering black heels. Kim showcased her figure, as she went bra-less in the strappy mini-dress. Trailer: The 38-year-old reality star was on hand for the shoot in West Hollywood, California Leggy display: Kim was careful to watch her step as she walked down from her trailer Sexy: Kim showcased her figure, as she went bra-less in the strappy mini-dress Shapely: Paris flashed plenty of leg, and sported towering black heels Clearly glamorous: Kim added perspex heels to her outfit Updo: Her trademark long dark tresses were styled in a high ponytail Stunning: Kim and Paris both looked well put together Vamped up: Paris had a black bra visible under her sparkly dress She added perspex heels and had her long dark tresses in a high ponytail. Her make-up looked immaculate, with expertly smokey eyes and a cappuccino lip hue. Paris revealed she has recorded the track with brothers Dimitri Vegas and Like Mike. Pals: Paris revealed the KUWTK star was making a cameo in the video on her Instagram Cheeky! Paris captioned a picture, which gave a heavy clue as to the title: '#SecretProject with @KimKardashian. I can’t stop looking at my #BestFriendsAss' Socialites soiree: The pair posed together behind the scenes Kim's pal Larsa Pippen, 44, was also on set, as she revealed to her Instagram stories. She shared a video with a snake loose in her luxury car. 'Met a cutie,' she captioned the video of the slippery reptile. The wife of Scottie Pippen was wearing a skin-tight black netting bodysuit which clung to her curves. Nets: Larsa Pippen gave onlookers an eyeful in her outfit No thanks: Larsa also revealed she was hanging out with a snake in her luxury car Kim-a-like: WAGS star Nicole Williams, 33, also glammed up for the shoot Wags world: The beauty was in West Hollywood filming with Paris Showing up in style: Kourtney Kardashian's BFF Larsa Pippen showed up at the shoot in a Ferrari Making money moves: She chatted away on her cell phone One more time: Paris also appeared to be joined on set by Derrick Barry Close: The pair were hand in hand as they filmed WAGS star Nicole Williams, 33, documented glamming up for the shoot in her Instagram. She explained: 'Coming for you Paris.' The brunette beauty looked great in knee-high crocodile skin boots. Queen! Paris flashed the flesh in a relaxed moment BTS All rights reserved for this news site dailymail and under his responsibility