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Norse mythology, Gunnlöð (also Gunnlöd) ( Old Norse "battle-invitation") is a female jötunn princess.
Gunnlöð is daughter of the giant
Suttungr, who was set guard by him in the mountain Hnitbjorg where he housed the mead of poetry. Her grandfather was  Gilling.
Gunnlöð was seduced by
Odin, who according to the bargained three nights of sex for three sips of the mead and then tricked her, stealing all of it. Prose Edda However, the poem  of the Hávamál tells the story a bit differently:
Gunnlod sat me in the golden seat,
Poured me precious mead:
Ill reward she had from me for that,
For her proud and passionate heart,
Her brooding foreboding spirit.
What I won from her I have well used:
I have waxed in wisdom since I came back,
bringing to Asgard
Odhroerir, the sacred draught.
Hardly would I have come home alive
From the garth of the grim troll,
Had Gunnlod not helped me, the good woman,
Who wrapped her arms around me. 
It would seem, from this version of the tale, that Gunnlöð helped Odin willingly, and that he thought well of her in return.
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