Halloween is notorious for bringing out the sexy in all of us, so why not let your significant other join in on the action? We’ve rounded up some of the most romantic (and maybe even a little raunchy) couples costumes out there. From sexy classics like mermaids and sailors to pop culture pairs like Danny and Sandy, you really can’t go wrong with the options here. Get creative with your partner in crime this year, and add some sex appeal to your celebrations with these outfit ideas. They’ll make this sinful holiday even more tempting.