for people still having issues with the dinner event trigger. I was having issues too until I unlocked the pool and than I talked to the aunt while she was on her way back from the pool instead of when she was at the table at around 6 or 7 P.M. you may also need to trigger a certain point of progression in the story until than. One that I'm certain of, because of the dialogue, is interacting with her door after dinner and complimenting her fancy dress. I also had every relation at about 90 and had everyone willing to give handjobs/blowjobs.