It is so in every scriptures. Possibly they did not yet arrive on anything better at that point of time. I will give one from Rigveda, said to be the most ancient oral text in the world, of Hindus:
His (Indra's) infatuation for liquor.. madira.. was comparable to the automatic attraction of the erected penis that would move invoulantarily towards the female organ at the very sight of it!
-- kalalepsarathy
-- kalalepsarathy