After Fluttershy introduced Sunset Shimmer to her wild side, she felt like they were rudely interrupted for a good bonding time by Rainbow Dash. Luckily, she was more than happy to make sure Sunset got it all......and maybe a little bit more.

Yeah Fluttershy has a spanking fetish.
Haha! Just a fun little adventure. Enjoy!

Edit: For the best experience, I’d recommend reading the first story, which is Spank Sunset Shimmer.