A possible example of'mothers love fanfiction' is a story where a mother's love crosses the boundaries of time and space. Maybe her child gets lost in a different dimension, and the mother's love is so strong that she finds a way to reach that dimension and bring the child back. Another example could be a story set in a historical period, where a mother endures great hardships but still manages to shower her children with love and care, teaching them important values in the process.
One example could be a story where a single mother works multiple jobs to provide for her children and still finds time to be there for them emotionally. Another might be a fanfic set in a post - apocalyptic world where a mother protects her child from all kinds of threats with her unwavering love.