Finding yaoi hentai

So it about this yaoi hentai where there is this dad/husband who went to a family event and there he met this other dude who got along with the kids. They actually started to do bbq together and they escaped from the kids (they were all playing I think) bcs they were tiring. They sat down and the other dude asked him if he have ever cheated on his wife and he said no. In short, they exchanged numbers and this dude send the married man a video of him mastubating and the husband got addicted watching the video. I read it a while ago but I don’t remember the name, but I think is in my reading manga/