This note is from the Godesses' Mirror:
Related to Inanna's identification with growth, abundance and fertility is her association with sex. Her presence is revealed in the attraction between the sexes. In her absence, sexual desire is non-existent. [refer Descent Saga] Many songs and hymns describe Inanna herself as eager for sex and is sexually active. In a hymn entitled 'The Sister's Message', Dumuzi's sister, Geshtinanna, tells of meeting Inanna and of how Inanna invited Geshtinanna to her house and in her bedroom confessed of her longing for Geshtinanna's brother.
From Thorkild Jacobsen's The Harp That Once comes the full version
Geshtinanna has been invited in by Inanna so that Inanna can confide in her how utterly she has fallen in love with Geshtinanna's brother Dumuzi. Geshtinanna loses no time in relaying the exciting news to her brother, and Dumuzi - pretending to have official business in the palace - is quick to be off to assure the suffering Inanna that he loves her too. The ditty, rather amusingly, renders the teenage sense of drama. Geshtinanna's description of how Inanna suffers all the pains of love to the point of faintness is probably meant to be taken with a grain of salt. She is not taken in by her brothers sudden official business at the palace, and her imitation of a pompous father at the end is very well done.
Geshtinanna: As I was strolling, as I was strolling, as I was strolling by the house, my dear Inanna saw me - brother, what did she tell me, and what more did she speak of to me? Brother, it was of love, allure, and utter blissful things, and accordingly my sweet Holy Inanna disclosed something to me: She had met you, my beloved man, when I was addressing myself to some errand, and fell in love with you and delighted in you!
Brother, she brought me into her house, and had me lie down on a honey of a bed, and when my sweet darling had lain down next to my heart, we, chatting with one another, with one another, she, my good looking brother, began moaning to me, and there overcame her there like what overcomes one very weak, and proneness to tremble from the ground up, exceedingly much, befell her! My dear brother - smiting her lips (in agony) does my sweet darling spend the day.
Dumuzi: Let me go, sister! Let me go! Please, my beloved sister, let me go to the palace!
Geshtinanna: To my paternal eye you are verily still a small child, - yonder Baba may know you for a man. I shall let you go to her!
Subscript ( it is a dialogue pertaining to Inanna)