One problem I have with this, is the idea of going through the effort of corrupting your mother to be into you, and then the MC makes her the town bike? It's probably just me but banging your mother kinda loses it's luster when just before she had like ten guys in her and also showed them to your sister.
Awesome, just what I wanted when playing this type of mind control game, is having the game let other guys bang the girls before I get a chance to and give no option for making them dependent on you.