It is forced and it is unavoidable. You will be watching (almost) all the girls getting fucked by random horses, cats, dogs, giant shellfish, monster gorillas and sometimes humans.
And yes. Protagonist barely has any scenes with the girls. One girl still refuses to sleep with him, even though she was already fucked by half of the fucking continent, including protagonist's dog. I'm not joking, that blown out whore has sex with your dog, but not you. And she's one of the permanent party members that participates in majority of the plot.
I think Young Farah is the only exception that doesn't have any forced scenes.