Erotic Romance

So, basically I have started working on some erotic romance. It will be under a pen name. However, I am curious as to what is the MINIMUM allotted of short story? I know it would be under 3,000, but I am curious as to what should be over of allotted of minimum. Like, over 40 words? Just curious is all. I have written a short story, but I am not sure if its too short because it is not even 3 thousand words. Hmm, wish I could ask one of those authors, but how do I get in touch with those erotic author? Well, hey, I am sure I will figure it out. Have a wonderful, peaceful night!