Narrated Aisha…I said, O Messenger of Allah, Suppose you came to a valley with a tree that had already been grazed by camels and a tree that had been not. Of which tree would you let your camel graze? He said, Of the tree that has not been already grazed. (The second narrator added, Aisha meant to say that the Prophet had married her because she was a virgin.)
-Sahih al-Bukhari, Traditions of the Prophet, Book 62, Hadith 14
Strange to say, but when our camels came upon a stand of acacia trees that had not yet been grazed by preceding Daboukas, their leaves, twigs, and thorns being dry, dust-covered, and brittle, the last thing I thought about was sex.