I think you should focus in writing and let the selling thing for the people who already have got it.
So... my suggest is you contact to high traffic websites of erotica content and you offer them link your content as a other services of the portal.
If the link to your stuff is showed to a person who have already searched for related stuff you have more probably to sell.
Or simply they can offer another folder wich erotica literature.
The difference is that that website already have targeted your prospect so they have done the hard job...
They can ask you for a fee but... anyway.. i think it deserves
You always can try lo learn google algorithm and such but.. i think we are just good in couple or three things in life and you already write well so.. what is your probability for the google engine? :-)