Christie Brinkley’s son Jack Brinkley-Cook and supermodel Nina Agdal proved their love on Sunday as they headed to the U.S. Open men’s finals in Queen’s, New York, during which his famous mum was reduced to third wheel as they got hot and heavy in the stands  

The group watched Novak Djokovic defeat Juan Martin del Potro in straight sets under a closed roof at Arthur Ashe Stadium in Queen’s, New York to win his 14th Grand Slam single’s title.  

Christie looks exceptional for a 64 year old. You can check out some more from the Brinkley family below, good genes.