There's random encounters with strangers and not just grab hands type. She gets creampied a few times at her work by strangers and around the map i.e one is a bangbros bus type of encounter. I don't think I've done all around the sister's house but a majority is just with the husband. I don't know if the random creampies effect her getting knocked up by one of them and not hubby but somehow I doubt it.
Just to the left is the porn van bit with screenshot. She gets anal and cremepied by a stranger for only 60 desire. lol Also the one to the bottom left she goes drinking with some cowrokers and they use wine bottles in a creativity manner on her.