I personally resent the concept of sex as a basic need. Or even the concept of sex as a need period.
Sex, in my opinion, is strictly a want. Food, water, clothing, and shelter are all things that are fundamental to survival. Sex is not. Fundamental to procreation, undoubtedly, but it is in no way required for an individual to live a happy and healthy life.

P.S. I hope I don't come across as rude or anything. Both my past therapists tried very hard to convince me that I should treat my sex drive as I do hunger or thirst while they are fundamental different. I just found this thread and wanted to post my opinion.