Rust Moon Realm Book 3: A Dark Fantasy Erotica by Maeve Harlow
After falling through a portal into a violent, grim fantasy realm, Fiona finds she has strange, sought-after powers. The soldiers who find her are ordered to take her to an abandoned tower to keep her safe…and breed her. The Goddess of Wrath seeks Fiona, sending her priestesses to find her and set her free. But until her rescue arrives, she is shackled with an enchanted collar that forces her to submit to the cruel army commander and four strong, ravenous soldiers.