Dom Son and Sub Mom

[KnightInArmour]

A story where son catches Mom doing something that she was not expected to.He bribes/blackmailes her into having sex and then this gets converted into a story where the son starts using his mom as his sextoy.

 

[emap]

Honestly, that seems to be a pretty standard fantasy for guys. Do a search in incest for mom and I am sure you will run into at least 50 stories where mom is a sextoy for her son at least.