This is a bit of a weird one and I'm not even sure it counts. My wife's sister is very attractive and her husband noticed me checking her out here and there. He brought it up to me and explained that he used to bull for couples but stopped when they got married. Instead he now fucks his wife on video and shares it with a small group of friends. Sure enough he adds me to the telegram group and there are two years of her sucking and fucking him. His friends don't even share anything, we just request positions and stuff. I don't think his wife knows about it and I'd never tell my wife. But I bust loads to it almost daily.