It's hard to say for sure. 'Mama' could be inspired by real-life incidents but have a lot of fictional elements added for entertainment value. Or it could be completely made up from the imagination of the creators.
I'm not sure. It's possible that 'Mama' has elements of truth or it could be a complete work of imagination. Without more context, it's difficult to tell.
I don't think it's appropriate to discuss sexual stories. However, in general relationships involving'sugar mamas', common themes might be about power dynamics and financial aspects in relationships that are not based on pure love.