Confession, I depend on spoilers to decide if here's something for me or not... Not a fan of NTR proper, and harem also doesn't cut it for me, looking for something more taboo but where the MC and his partner are both always assertive and in control. Sharing/swinging, when done right, without cuckold fetish, BBC fetish, PE or unsatisfied lover tropes, cuts it for me. I've read the thread and it seems like there's NTR and no NTR routes, but if you don't mind my repeating HUNUTAN's question about sharing, which you may have avoided in your reply for any number of valid reasons, is there/will there be a "stag" sharing/swinging route with any of the girls, without loss, humiliation or submissiveness on the MC's part?
Regardless, great that you do this for fun! And that your paths aren't obvious and linear, that brings up hope for nuance and trope avoidance. Keep going!