What if Zatanna had a contract with a succubus/incubus?

The deal was relatively simple, in return for demonically aligned magic when it was needed, ancient tomes of forgotten spellcasting lore, and any riches or trinkets she found herself needing, Zatanna's sex life would help empower her new demonic 'mate'. It didn't matter if she had one partner or a thousand or if they were man or woman, all that mattered was that Zatanna fucked got fucked hard and often with more always being better. Zatanna was glad she got to choose who she fucked at least, even if she quickly developed a reputation as an easy, slutty mark for any hero or heroine who wanted a go at her. It was worth it though, it was all worth it.

((Optional: The contract and demon magic slowly corrupts Zatanna, making her into more and more of a sex addict until she doesn't even care about fighting crime or the benefits she gets out of the contract, she just wants to fuck.))