Cuckolding your wife on wedding night as she gets pregnant by bro-in-law

It is your wedding night and your new bride is sitting in her robe. She talks to you about how special tonight is and how much she wants to start a family with you, but you both know you can't do that so in comes her brother-in-law. He enters her from behind in doggystyle and your wife is taken by surprise by the size of his cock. She has you start to stroke your cock as he continues to fuck her from behind. She loves having you cuckolding her and she tells you to try not to cum as she wants you to fuck her when he leaves. She continues to get fucked and talks about how great it will be when she gets pregnant. Finally he is pumping his huge load of cum deep inside your wife's pussy. Her face tells the story of just how big his dick is. She says he pumped so much cum into here that it might just be twins.