I read a book once called Sex Matters by OSHO and it totally turned my world upside down. His wisdom combined with his humorous approach spoke to me. I went on to read many books by OSHO and gained much knowledge from his teachings, as well as many laughs. While OSHO might not be for everyone I think everyone owes it to themselves to check out his writings to see.
Here is his book Sexy Matters you should Pick Up and try!