A Gender Bender trope, where someone who would have made a good match if not for gender suddenly is a good match, and some version of a Romance Arc (and in the more Egregious cases, the relationship) begins immediately. Often, there hadn't previously been one iota of serious thought about a romantic relationship between the two people prior to the gender shift. When--as is sometimes the case--this involves the gender-switched person changing their sexual preferences, many people find this plot extremely squicky. Examples of Jumping the Gender Barrier include: