The mum-of-two, 33, who is engaged to the TV presenter, 61, showed off her jaw-dropping figure in several sheer lace sets from her lingerie brand BOA BOA.
The presenter, 61, and the business woman, 33, looked as loved-up as ever as they posed for photos on the red carpet at London s Grosvenor House Hotel.
DIY SOS star Nick Knowles has a string of famous relationships under his belt, but the TV star has found lasting love with his new fiancée, who is 27-years his junior