AITA for telling my wife and in-laws to fuck off after they said me cuddling my younger sister on the couch was inappropriate
so my sister (26) and i (28) have always been close, weve been each others sounding board our entire adult lives, we live about 20 minutes from each other and see each other most weekends, weve always been a physically affectionate family, lots of hugging, sitting close on couches, leaning on each other watching tv, my mum is the same way with both of us, its just how we grew up.
my in-laws were over for the weekend last week and on the saturday night my sister had come over to ours for dinner because shes been going through a rough patch at work and i wanted her to be around people, after dinner we all migrated to the lounge, my wifes parents had brought a couple of bottles of decent wine, my wife and her parents were drinking, my sister had one glass then switched to tea, and we put on a film. about an hour in my sister had basically melted into the couch next to me, leaning on my shoulder, half asleep, the same way weve sat on a couch since we were teenagers.
once the film ended my sister woke up, gave me a long hug, said goodnight to everyone, and drove home, my wife and her parents stayed up to finish the wine. a couple more glasses in, my father in law sort of cleared his throat and said he didnt want to say anything earlier but he thought it was inappropriate that i still cuddled with my sister like that at our age, that my wife had said the same to him in private before, and that he and my mil thought we should "be aware of how it looks."
i sat there for a second waiting for someone to laugh, my wife didnt, my mil nodded, my fil pressed on saying he loved me and he wasnt accusing me of anything, he just thought adult siblings shouldnt fall asleep on each other on the couch like that, that it was the kind of thing people noticed.
i told all three of them to fuck off and go fuck themselves, very plainly and without raising my voice, and then i went to bed.
they all want an apology noW
AITA?