All the Aliens (Paranormal Erotica)

After Casey's ex-boyfriend's attempt to getting her in a threesome fails, she comes to realize that she's got a multiple-partner fantasy of her own. Only it doesn't involve him, it involves faceless strangers. The one thing Casey doesn't expect, however, is when the strangers end up not even being human at all.

This paranormal erotic short story is about 3,500 words.