Halloween is often described as "the one day of the year where you get to be someone else," and that's why we love it so much! (Particularly, because it usually means that girls are wearing something sexy that they wouldn't wear during the rest of the year.) This rule doesn't just apply to us humans, though. We searched far and wide, and brought you the 20 sexiest Halloween costumes, and their canine counterparts. So tell us: Who wore it better?