Gilgamesh

In order to understand this question, you have to consider the people from whom this story comes.  These people were vibrant and transferred their own human qualities to the gods whom they worshiped.  Like the gods of other ancient peoples, their gods were strong, superior, and easily above the people on Earth.  Nevertheless, they had human qualities; sexuality is often the center of much of humanity whether you are dealing with the people who created Gilgamesh or Adam and Eve in the garden