You and your friends slip some growth potion into your step-moms tea before she goes to bed not thinking its going to work, but in the morning you all realizes you were very wrong. it did work and now that your step-mom is super large she can you all up. But she promises that she would never harm her own step-son she slowly begins to change and turn evil. as she grows more and more hungry all she wants to do it eat your friends and to play with herself. at first she is apologetic, but the new step-mom starts to take over. she squishes a friend between her boobs, then eats them, shoves one between her ass and eats them and one into her pussy and eats them. all while you watch and become aroused, your own step-mother becomes disgusted that you are aroused and demands you to bring her more friends to eat.