Stepbrother on My Mind Perv Therapist Penny Barber is back, and this time sheâs helping stepsiblings Kenzie Reeves and Nathan Bronson get past a recent barrier between the two. Kenzie recently walked in on her stepbrother masturbating, and since then, she canât get the image out of her head. Penny suggests that instead of running away from the fantasy, they should pursue it headon. Using focusing techniques, Penny helps Kenzie and Nathan get back to a normal life