Um, it's really not focused on bestiality. Bestiality refers to sex specifically with animals, non-sentient and most often nonfictional. In terms of this game, there's like 2 scenes with hellhounds, some optional / semi-optional tentacles (been a while so I don't recall if any are actually required to advance to other quests / scenes), and one I recall with a manticore. Orcs, minotaurs, exc generally aren't considered bestiality since they're both mostly humanoid and sentient.
Sure, if you decide any non-human counts, then orcs, elves, dwarves, exc could be considered bestiality, but that's not the standard definition in any way.