A Hopeden/robron surrogate story

Robert and Aaron have been through it all, with Katie intending to reveal all about Robert Sugden's affair with Aaron, who Robert was having an affair with behind his wife to be's back, the kiss that brought them together after Robert found out Aaron was gay and 'robron's' squarrals which often involve Robert having a jab at Aaron for his self harming..and more.
Now Robert and Aaron think it's time for them to settle down with a baby of their very own...but who can they turn to for a little help?