Just be clear about what you're looking for, and such a demon/demoness would come to you. Of course, you'll have to be sure that you're Astral senses are well-trained... though She'll generally help with that. I'm assuming you've read this: Incubi and Succubi: Sexual Relations With Demons  

As a species, we can eliminate the Abrahamic ideologies and slowly purify our genetics, thus healing humanity of the Abrahamic sickness. But can we do anything as individuals? Can a mixed race SS purify his unclean DNA? Can a SS regenerate his flesh, so as to heal the accursed mark of Abraham...