Who is Selling Sunset star Mary Fitzgerald’s secret son as he walks her down the aisle at wedding?

Selling Sunset star Mary is a proud mum to son Austin (Picture: @maryfitzgerald, Netflix)Selling Sunset star Mary Fitzgerald is often at the centre of the main action thanks to her divisive romance with French chef Romain Bonnet. Season two of the Netflix reality series comes to a grand and magical close with Mary and Romain’s fairytale wedding after weeks of stressing about finding a venue – and the wedding invites, ahem, Davina. While we know all there is about Mary and R