I wouldn't say that you would sleep with them instantly. The feeling of being attracted to someone can come in different forms. Like, there is emotional attraction and physical attraction. Attraction is simply the feeling of being drawn to something or someone else.

I wouldn't think so. I think that that feeling shows that you are a human being.

A protein depolarizer is a fictional device used by a character to commit suicide instantly and painlessly in the Issac Asimov short story "Feeling of Power."

I got my answer instantly.

The hot chocolate was instantly prepared.

Yes, you have feeling in your eyes. Even when you blink your eyes you feel it! Ever get a headache in your eyes? If you touch your eyeball you instantly feel pain and may get teary-eyed. There are optic nerves in your eyes that allow you to feel things, so yes, you CAN feel things with your eyes!