Rex told the group about his family in the early hours of this morning, revealing that his brother is a lot to handle.
He began by telling the other housemates that his father had raised three kids and built up a "very successful" business at the same time.
Kat asked him whether his two other brothers were close to his dad and Rex said: "Dexter is the most distant. I've said that no one should give him any money and then he'll have to get a job but he just won't get one."
Rex added: "Talking to him is like talking to Darnell times ten, he'd shut you down in five seconds."
Darnell laughed, after which Rex continued: "We've had psychologists come over to the house and he has an answer for everything. He's so intelligent, but he's too intelligent for his own good."
The housemates listened attentively as Rex told them: "The two topics of conversation we have in our family are how to help Dexter or how we can improve the businesses."
