Is it worth having sex on first date.

Yup. As long as everybody is cool with it. Trouble is, it's not just men who lie about their intentions. I've "put out" and was rewarded with not even friendship soon after.

If you both have mutual feeling sure! However, you might end up creating false feeling that fall apart after the heat of the moment.This recently happened to me after meeting a very good friend iv'e known for 5 years.