20-year-old model, Hailey Baldwin, got seriously sexy for day 21 of Love magazine's annual advent calendar. Baldwin tosses around in some very revealing black lingerie and a pair of red thigh-high boots. The Love magazine holiday tradition this year has included Baldwin's cousin, Ireland Baldwin, Baldwin's BFF Kendall Jenner, Kim Kardashian West, Ciara, models Irina Shayk and Stella Maxwell and more.