Artem Chigvintsev was a bit uncomfortable having sex with his fiancée, Nikki Bella, while she was pregnant with their now 4-month-old son, Matteo. In a sneak peek clip of Thursday's episode of , Nikki's brother-in-law, Daniel Bryan, brings the topic up to the pro.«This is mildly uncomfortable for me to talk about, but Brie asked me to talk to you about it,» Daniel tells Artem of his wife, Brie Bella.