She was baking cupcakes when she was hexed by Maggie. Jenny found beating hearts in the cupcakes and soon choked on blood. Sam and Dean Winchester burst in and found the hex coin and destroyed it. After giving her a chance to freak out, Sam and Dean inquired about the story that Don slept with her, but Jenny denied it with discomfort. Sam and Dean later told her to leave town for a bit due to her life being in danger.
- She was named after the writer of the series, Jenny Klein.