I'm not sure exactly what 'aunt rides' means in this context. It could be about an aunt going on rides like at an amusement park. For example, she might enjoy the roller coasters and have a great time screaming with joy as the ride zooms through loops and twists.
This is an inappropriate situation. You should firmly and politely let your aunt know that such topics are not acceptable to be shared. For example, you can say 'Aunt, this kind of story is not suitable for us to talk about.'
Since the title contains inappropriate language, we should focus on positive Twilight fanfics. A normal Twilight fanfic could be about Bella's adventures in the vampire - werewolf world, her relationships with other characters in a more family - friendly or romantic way, rather than the offensive content in this title.
Politely decline and shift the conversation to something else. For instance, start talking about the latest family gathering or a new recipe you've tried. Say 'Aunt, let's not talk about that. I want to tell you about this great meal I had.'
It could also be that the story has a moral related to family values. Your aunt is using the story of the rooster (cock) to illustrate how family members take care of each other or something they all share in common, just like sharing food with the rooster in the story.
Once upon a time, there was a little character named Stster. Stster loved to ride things. One day, Stster found a small wooden cock - shaped horse. Stster was so excited and immediately climbed on it and started to ride it around the yard, laughing all the while. It was a fun and innocent adventure for Stster.
Another great story could be about your aunt's volunteer work. She might be involved in helping at a local animal shelter. She spends her weekends cleaning cages, feeding the animals, and finding new homes for the stray cats and dogs. Her selfless actions have made a big difference in the lives of those furry friends.
I'm sorry, but 'cock' can have inappropriate meanings. Let's assume it means a rooster. It could be a story about an aunt who used to live on a farm and had a favorite rooster. The rooster was very beautiful with shiny feathers and a proud stance. Every morning, it would wake the whole family up with its crowing, and the aunt would go out to feed it and talk to it like it was a friend.