Celebrate Halloween 2019 in Sexy Style With These 70 Sizzling-Hot Costume Ideas

Listen up, ladies — in 2019, every adult woman should feel comfortable embracing her sexy side for Halloween. Whether this means showing extra leg, wearing an ultratight dress, or baring major skin, we've rounded up ensembles that range from conservative to straight-up scandalous, and everything in between. From pop culture costumes like Ashley O and Harley Quinn to classics like Poison Ivy and black cats, there's no limit to the hot ideas out there. Get ready for a confident night out this All Hallows' Eve with the alluring costumes we've collected ahead!

— Additional reporting by Hilary White