Lottie Tomlinson, younger sister to One Direction’s Louis Tomlinson, is one of the most beloved beauty girls on Instagram and is just shy of 3 million followers. If you have been keeping up with her posts, then you know she’s releasing a slew of lip and nail kits for her Nails Inc. collaboration, MatchBox. And the partnership is exactly what the 18-year-old makeup artist toasted to in London Tuesday night, with a ton of familiar faces showing their support.<\/p>\n
Naturally, big bro Louis turned out for the festivities and kept things cool and casual in a white T-shirt and black jeans. He was accompanied by stylish girlfriend Danielle Campbell (above, left<\/em>), who was fall-perfect in all black\u2014a silky crop top, leather lace-up pants, and suede thigh-highs to be exact.<\/p>\n<\/p>\n<\/p>\n \n \n David M. Benett\/Getty<\/p>\n<\/p>\n<\/p>\n RELATED: Lottie Tomlinson x Nails Inc Is Coming Soon<\/strong><\/p>\n<\/p>\n Lottie (pictured above with her brother) kept it sporty in Fenty x Puma white lace-up pants ($150; bloomingdales.com) and an on-trend black lace bralette that showcased her toned abs for the launch celebration at Tape London.<\/p>\n On Wednesday, the 1D singer shared a sweet message about his sister’s accomplishment. “So proud of my sis last night :),” he wrote in the caption\u200b\u200b\u200b\u200b\u200b\u200b\u00a0to a photo of the siblings at the event. “Well done, Lots. Love you.”<\/p>\n RELATED VIDEO:\u00a0The 10 Lip Colors You Need for Fall<\/strong><\/p>\n<\/p>\n Lottie’s limited-edition MatchBox nail and lip kits come in four combinations: a hot pink duo, coral pairing, orange twosome, and mauve coupling. They each retail for $19 and are available at Nails Inc.’s website now.<\/p>\n<\/p>\n<\/p>\n