A brother and sister decide to live in the same apartment for a time to save money, but the two end up rekindling old, buried passions the brother once thought were gone for good. The sister never forgot, however. Now a full-fledged witch, she skirts around the issue, trying to repress her desire. Until one day an accident with a spell causes her to grow a cock, and it just happens that the only way she can rid herself of this curse is to cum inside someone... Unfortunately, she's alone with her brother in the house, and doesn't want to go searching for other prey..