as a man with a pussy, i think there should def be an option for the woman with penises to have an option to have balls too. it wouldn't even be that hard to achieve, because fundamentally you could easily make the mechanics that of the male characters so they couldn't get pregnant too. hell if that's too hard there could be an option to toggle balls on them instead, just means they'll get penetrated behind the nuts instead and we can all pretend it's an asshole since the dev didn't include that kind of stuff either