Thanks for asking.

There are several legends behind the origin of Sex at Noon name.

Feel free to choose the one you prefer, or suggest a new one:

• Sex At Noon, Taxes is a funny palindrome sentence (you can read it from left to right and both right to left). Thought it might make a great website name.
• Noon is the best time to have sex. Thought it might be worth to share the news.
• Here there are 284 anagrams of Sex At Noon. The real meaning might be hidden there.