The words "hottie" or "cutie" aren't exclusive to just women or young girls -- that's just from a man's perspective. Men can refer to girls/women as "hotties" or "cuties" because they are basically "cute, attractive, beautiful, gorgeous," etc. However, women also use these terms to refer to men as well, especially "hottie."
Also, "cutie" is also a word that is used when speaking to young children. For example, an adult sees the young child of a person nearby and says "Well, aren't you a cutie?" This basically is saying that the child is adorable.