Gunnlöð

In Norse mythology, Gunnlod (Old Norse "Gunnlöð", meaning "war-foam") was a daughter of Suttung, who was set guard by her father in the cavern where he housed the mead of poetry. She was seduced by Odin, who according to Snorri bargained with her to exchange three nights of sex for three sips of the mead and then tricked her, stealing all of it. But the "Hávamál" of the Poetic Edda 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 Gunnlod helped Odin willingly, and that he thought well of her in return.