Long Macchiatos and Monsters by Alison Evans (m/nb)
Sated by Rebekah Weatherspoon (m/f)
Just Business by Anna Zabo (m/m)
Gays of Our Lives by Kris Ripper (m/m)
All in the Family by Q. Kelly (f/f)
Bonus: Second Position by Katherine Locke is not demisexual on page, but is a great choice for those seeking a demi m/f romance, and features an amputee hero