Looking for a doujin of a bathhouse owner who allows his wifegirlfriend to sleep with the guests ? ? Used to be on Fakku <| sep |> Was it built by slaves . yes , it was . <| sep |> While that is also an implication , the way the explanation was worded also implied that only women with strong genes and immune systems could manage to make large , symmetrical boobs . The corollary here is that women with smaller boobs must not have had the genehealth combo to manage it . Now that could be the completely wrong way to think about it biologically . I totally admit that possibility , but that ' s why I ' m asking . Edit What ' s with the downvotes ? I completely admitted I could be thinking about this wrong . I ' m just trying to figure it out .