Many people have written to me or spoken with me in person to say that they are amazed at how prolific I have been. I must admit that, while my ego certainly likes such compliments, I do not particularly see myself as being prolific. Yes, I write a lot, but it is really not because of me, but because of the characters and their stories which fill my head. In essence, I am simply a means for the characters' stories to be told.
That said, there are indeed strategies which can help someone to become a prolific writer. These are strategies which I employ in order to tell the characters' stories, but they are simply strategies, and they can be used for erotica or probably any other genre of writing as well.
The first is to not
attempt
to be prolific. This may seem counterintuitive, but it really is important. By focusing on such a goal, it could become very easy for someone to lose sight of the reason(s) one writes. Those who read a lot have certainly found this: Some authors who seem to write an encyclopedia's worth of books in a given year lose the quality of their writings over time, so while they may still be prolific, whatever their initial reasons for writing could be getting lost in the quest for higher profits for their publishers, greater fame for themselves, etc. Yes, money and fame can be good, but those goals are probably going to cause more issues than benefits in the long run – if quality drops, for example, fewer people will buy the books, which could put that person's writing career in jeopardy. Therefore, one must focus on other reasons – like the initial reasons – for writing and continually tap into those reasons to maintain a steady stream of output over time.
Related to the above is to never lose sight of the reason for writing. Personally, I simply enjoy it, in part because it is a great way to "forget" the issues and stresses related to my job. Writing also allows me to relive some experiences, and dabble with new concepts. Perhaps a side benefit of all this is that I am almost never bored: When things are slow, I can always think about whatever stories are currently in progress, or consider new stories to be written, so that I am always "writing" even when I am away from my laptop and do not have pen and paper on hand.