Brittany Matthews is breathtaking in new maternity photos [SEEN HERE] she shared to Instagram on Wednesday, January 27. The fitness trainer, 25, who’s expecting a baby girl with Kansas City Chiefs quarterback, Patrick Mahomes, 25, showed off her growing baby bump in a series of professional photos. The expectant mom modeled her bump in a number of looks, including a cream-colored lace dress, a white bodysuit and a black bodysuit.