The doujin is about a girl that ends up dating a older guy, and later on they marry each other (they also watch a photo of the weding with all their family, one the the relatives looked like a yakuza). There's a scene of them having sex and a friend calls just to greet the couple, the husband pick the call and then pass it to the girl while they keep doing it. The girl then gets mad and cuts the call and throw the phone to the husband.
That's more or less how I remember it, it's a vanilla doujin, nothing serious going on.
That's more or less how I remember it, it's a vanilla doujin, nothing serious going on.