She finds her stepsister's boyfriend in her room, perving on her! She knows he must've been touching her panties because this time she placed a shrinking spell on her panties so if anyone else touched them but herself-they would be shrunk! And here he is, shrunk! She gives him an ultimatum, either she tells everyone, or he transforms into her used panties. He chooses the latter and she tells him to rub himself against her panties until he cums-then he'll finally be one with her panties.

*This was a custom video*