Ask her if perhaps the two of you could reach an understanding

You decide to take advantage of the momentary rapport you have with her, to see if there might be some way to talk your way out of this. You stop moving inside her, pull your face away far enough to see her reactions in full focus.

"I wonder if...maybe we could be useful to each other, in a broader way." you say, trying to let go of the surges of passion you feel to have a more pragmatic conversation.

"You think you have more to offer me than your fat cock?" she says with a smirk.

"I think I do." you say as you start to pull out of her. She reacts by clamping down hard on you, dazing you with the sudden increase in stimulation. You stop moving.

You continue, "I am well connected in artifact world, may I...UNGH!" you try to concentrate as she gives you another mind numbing squeeze and giggles. "I could help you get your hands on items like the book I found, that told me about this ritual. There are still clues out there about you and your kind, I could help you erase them." you finish with a pleading smile, trying hard not to think about your cock as it continues to get squeezed and milked.

"I suppose that could be helpful..." she says, looking off into the distance, seeming to consider your words. "I need more than that from you though. I want unlimited access to your lovely cock." she says as she gives you another hard squeeze.

Your eyes bulge and your jaw drops, but you catch yourself and try to breath evenly.

"i'm not sure I could survive that." you reply. "I could agree to that, if you would also agree to let me document your life story."

"I'm not sure you're in much of a position to negotiate. If you don't give me everything I want, I will just milk you dry right here....but, telling you my story could actually be interesting. It runs counter to your other offer. If my story were out there, it would be hard to remain unseen."

"I would publish it as fiction, nobody would believe it was real anyways, and yet you would have a record of your long, interesting life. The world would have a story that told so much of our history through a different lens, even if they didn't realize it was real." you quickly add.

"Ok. I will let you tell my story, if you get me out of here now."