One story could be in a circus act where a performer does a gentle facesitting stunt as part of an acrobatic display. It's more about balance and showmanship rather than any form of smothering. The other performers are there to ensure safety and it's all in good fun for the audience.
A foot smother story could be about a prank. For example, in a group of friends, one friend jokingly put their foot over another's face while they were lying on the couch. Everyone had a good laugh about it.
Fanfic is supposed to be a form of creative expression that is accessible to a wide range of audiences, including younger readers in many cases. Content like 'breast smother fanfic' is not in line with the values of a healthy and inclusive fanfic community. It can make people uncomfortable and may even be considered offensive.
Perhaps in a slice - of - life anime, a group of friends are playing a silly game that involves a facesitting - like situation. One friend, who is very clumsy, accidentally falls on another friend's face while trying to perform a trick during the game. This leads to a lot of laughter and some light - hearted teasing among the group.
A 'fanfic' is a fictional story written by fans of a particular work. However, 'facesitting' in this context is inappropriate and not suitable for public discussion as it involves adult and inappropriate themes.
There could be some extremely rare and underground works that might touch on this, but they are not something that should be actively sought or promoted due to their inappropriate nature. Most fanfic platforms have rules against such content.