The reality TV star was seen kissing her partner and slow-dancing with him on the street.
The former X Factor star seemed thrilled to be reunited with Brian following her stint in the CBB house.
They were spotted heading out on a lunch date in the capital, and they proved there is still romance in the marriage as they couldn’t keep their hands off each other.
The happy couple was spotted kissing, and even linking hands for a waltz in front of the cameras.
Katie looked chic in a black top and jacket, teamed with demin shorts, and Brian donned a smark blue shirt and jeans.
The former singer looked happy and relaxed during her day out as she made the most of her time with Brian.
Katie married comedian Brian last year.
It is the second marriage for the star, who was previously wed to model Brad Alphonso.
They tied the knot in 2012, but split just two months after exchanging vows.