Is sexual/physical attraction prejudice in disguise?

I've been trying to Google up information about this, but all the hits I'm getting are stupid links that deals with gays and lesbians. What I'm trying to find out more on is if sexual attraction or preferences (like is a guy only likes or is interested in skinny girls, fat girls, asian girls, girls with blue eyes, redhead girls, or whatever) could be deemed as a prejudice.

I'm not sure if it can be termed as prejudice, since you aren't coming up with any conclusions on who that person is, well, I can think of one, but it's pretty stupid, and that's is the person might be a good lay, or perhaps it is prejudice when dealing with our unconscious biological tendency to find the best possible mate? I've asked people what they thought, but just like myself, they've never really heard or thought about the question before and were confused and couldn't come up with an answer.

What do you think? Is being sexually or physically attracted to a particular type of person (skinny, fat, muscular, slender, blonde, brunette, redhead, short, tall, white, black, asian, etc) or whatever else you can think of considered prejudice in your book? Maybe it would be easier to think of it in terms of people you aren't sexually or physically attracted to, is that considered prejudice? For example not wanting to go out on a date with them or getting romantically involved because they're just not your cup of tea.

Jam it back in, in the dark.