Kanye West's leading lady and her sister are no rookie snow bunnies. During a family trip to the mountains in Park City, Utah on Dec. 31, Kourtney and Kim Kardashian showed off their limber skills on the slopes. In the Keek video above aptly titled "Freaks", Kourt glides in between Kim's legs effortlessly, inspiring North's momma to do the same. As Scott Disick plays camera man, Kimmy goes in for the middle and almost doesn't make it. Watch the snowy antics above and stay tuned for season nine of Keeping Up With the Kardashians premiering Jan. 19 at 9 p.m. on E!