Some of the literal titles of the monster-porn genre, like Forcefully Bred by the Minotaur, illuminate a problematic theme in the work — the eroticism of non-consensual sex. (Even if it is with a non-existent creature.)
Dinosaurs, Minotaurs and Shapeshifters, Oh My! Welcome to the Bizarre World of Monster Erotica
It's probably exactly what you were expecting
Forcefully Bred by the Minotaur