This is a rather strange and inappropriate statement. Maybe in a very unorthodox sense, she could be implying that his tales are so outlandish that they are 'big' in the sense of being hard to believe. However, this is all speculation because the statement as it stands is not only vulgar but also very ambiguous.
This is a rather strange and inappropriate combination for a story. However, if we were to create a positive and family - friendly story, perhaps the grandson, who was strong - willed like his physical description might imply in a metaphorical sense, helped his grandma with her garden. He used his big strength to dig holes for new plants and grandma was very proud of him.
It's completely inappropriate. In a civilized society, we should avoid using such vulgar expressions. They can make people around us feel uncomfortable and also violate basic norms of good behavior and communication.
Well, 'talks dirty' is when someone engages in using lewd, vulgar language. The 'big dick story' part is rather unclear and inappropriate. It might be part of some sort of vulgar conversation or story - telling that involves sexual references, but it's not something that should be promoted or used in proper communication.
She should surround herself with positive people. Her friends and family can offer support and love. They can also introduce her to new experiences and new people which will help her forget about the old relationship and the 'big dick story' that came with it.
It could be that his so - called 'big dick' behavior included being over - aggressive or not listening to her. Relationships need communication and respect, and if he was lacking in these aspects, like always pushing his own ideas without considering her feelings, she would break up.
A 'big dick morph story' could potentially be a fictional or fantasy story where a character undergoes some sort of transformation related to having a large penis. However, this is a rather vulgar and inappropriate concept in most contexts.