I'm looking for a game I played some time ago. I don't remember the name, only parts of the story. I'm not sure about the beginning, but at some point the male protagonist, his mom and (I think) his two sisters go on a holiday trip on his aunt's newly traded yacht (in exchange for a villa or something). On the yacht he and one of the sisters convince the other sister to take part in their shenanigans, but at some point their aunt catches them. How the plot unfolds after that, I don't know.