Not sure if this (or something like it) is in the plans, but just like how some of the girls start getting proactive about getting pregnant when the MC has unprotected sex with them if they love him enough and aren't on the pill, I think it would be pretty cool if some of the harems (Home, in particular) behave similarly as a group.
e.g. the girl(s?) in question asking (begging, if collared?) him to put a baby in her, while the other girls present also encourage the MC to not pull out, then cheering/encouraging/dibs on nexting as he stays in. (Possibly with some form of scripted hierarchy instead of specific player choice, skipping any girl already pregnant/on pill/not in harem/not present. So in the case of the Home Harem, maybe starting with Bree & Sasha sharing a creampie while Minami calls dibs on next during the first scene, then Minami get hers the next time, followed by Samantha, and finally Lexi.