My first of five office holiday party outfits is the perfect combo of sexy, sleek, and our favorite holiday color—black. The best part about this look is that these pants are actually leggings. Now you’ve completely tricked everyone into thinking you’re a real adult. You can totally re-wear these to the office with a white button down and no one will notice. I’ve paired them with this black velvet bodysuit also from Zara. Nothing says holiday like velvet, amirite ladies? Throw on some over-the-top earrings and a cozy fur and you’ve completed your look.