Primary vs. secondary sexual attraction model

This model of the spectrum of asexuality was created by the AVENite Rabger (under the username ~Forbidden Fury~). The model includes several new terms and definitions:

Primary sexual attraction is an instant attraction to people based on instantly available information such as their looks or smell. It may or may not lead to arousal or sexual desire.

Secondary sexual attraction is an attraction that develops over time based on a person's relationship and emotional connection with another person.

Primary sexual desire is the desire to engage in sexual activity for the purposes of personal pleasure (either physical or emotional or both).

Secondary sexual desire is the desire to engage in sexual activity solely for the sake of the happiness of the other person involved, or for another ulterior motive such as the conception of children. Most sexuals in romantic relationships feel both primary and secondary sexual desire.

Asexuals, in Rabger's model, are people who lack primary sexual desire. Some asexuals therefore experience attraction and/or secondary sexual desire, but some don't.

A more detailed discussion of Rabger's model can be found here.