Spencer Matthews has said that he's looking forward to his son growing up with his cousin, Pippa Middleton's baby.

Spencer's wife Vogue Williams is due to give birth to their first child, a boy, in September. His brother James is also soon to become a dad - his wife Pippa Middleton is expecting a baby later this year. The two cousins "will be a very similar age and I think it will be great for the kids to grow up together, as such," Spencer said on ITV's This Morning. "We're all looking forward to it and very blessed." When asked if he knew the gender of James and Pippa's baby, the soon-to-be dad refused to comment and said that he's been kept in the dark about his new niece or nephew. "They are extremely private and, honestly, we know nothing so I'm not able to comment." James married Pippa, sister to the Duchess of Cambridge Kate, last year. Spencer also told hosts Ruth Langsford and Eamonn Holmes that he and Vogue were already planning to have more kids in the future. "We’re very excited. I was kind of hoping the first child would be a boy. A protective aspect for if you have a girl or the next child. "We would like to have at least three children."