18-year-old step-sister is turned into a slave pig

Her step-brother is very jealous and attacks Marra whenever he can. And makes him lick his feet. She is tired, but she can't do anything now. She smells very bad and no one loves her, she can't get a boyfriend. He says he will be the master. Of it, if utensil is put. And she doesn't accept it. Days later, so much despair that no one wanted her. Because it smells ugly, she accepted her destiny of being her step-brother's submissive and now she is a dirty pig.