But I can't say no to my favorite twin.
|—"Kiki's Pizza Delivery Service"|
She wears large gold earrings, a pale cream-colored shirt, a dark brown leather jacket with a beige fur-trimmed collar, lavender shorts (previously long pink pants), and mint-colored flats. While at work, she wears reddish-magenta capri pants and a mauve-colored t-shirt under her apron. She has brown skin and wears her hair in a puffy bob hairstyle. At the beach party, from the episode "Beach Party", she wore a bright red and white striped crop top, a black mini-top underneath, and pale sea-foam green jeans. In "Joking Victim", she wore a white top and dark pink pants.
Jenny is a chill, fun-loving teenager. Like most teens, she shirks her responsibilities, even at work where she sleeps on the job at the family-owned Fish Stew Pizza. She is not as enthusiastic about the family business (even stating she hates the smell of pizza) as her sister Kiki, and certainly not as much as her father, Kofi. She does, however, enjoy hanging out with her grandmother Nanefua.
She cares most about hanging out with her friends, and isn't afraid of a little danger or doing something possibly illegal. Being one of the few with access to a car, she drives her friends around town. She is also selfless and brave, standing in front of Garnet's fist right before she is about to punch the Escape Pod that Steven is trapped inside. Jenny is also friendly, as she quickly accepts new people into her friendship group and is willing to drive them around.
Jenny is seen hanging out with Buck, Sour Cream, and Kiki at Fish Stew Pizza. She leaves the shop with the other Cool Kids, asking Kiki to tell their dad that she will be back later. Outside, the Cool Kids are greeted by Steven, and after a brief conversation, invite him and Lars along for a ride. Jenny drives the group around town as they decide on where they should go. She eventually suggests they go to Dead Man's Mouth. At the lake, the Cool Kids and Lars decide to go for a swim despite the police tape and Steven's insistence to return to the boardwalk. The Cool Kids jump in and are quickly engulfed by the Magic Moss. Using Jenny's car, Lars and Steven bring the Cool Kids to Brooding Hill, where the sunlight frees them from the moss by causing it to bloom. From the hill, they appreciate the view of Beach City and praise Lars for driving them there.
Jenny and Buck Dewey are seen playing in the snow, right before giving Greg their sled.
Kiki is Jenny's twin sister. They appear to have a good standing, but not a terribly close relationship. Kiki can be seen as the "good daughter" who's upright work ethics clash with Jenny's more kickback "take it easy" attitude. Jenny even goes as far as to identify herself as the "evil twin" (It is also revealed that even though Jenny is the "evil twin", it appears that she is the one helping Kiki with her schoolwork and not the other way around). Their relationship is further explored in "Restaurant Wars", when Jenny said that she is the cutest girl in Beach City, and kissed her cheek, showing they have a good sisterly relationship with minor faults. In "Kiki's Pizza Delivery Service", Jenny is shown to take advantage of her sister's charitable nature, having her cover shifts for her for weeks. This, however, is not based on any sort of malice, as she is perfectly willing to cover for Kiki when she decided to take a day off.
Jenny's father allows her to use the car but doesn't like it when she shirks her duties or sleeps late. He is a strict parent who doesn't mind threatening her with the removal of privileges if it can benefit him. This is seen in "Beach Party"; however, he may have been joking in this particular instance.
Jenny's grandmother, Nanefua, does not chastise her for sleeping late or skipping work at Fish Stew Pizza. Among everyone in her family, Jenny seems to get along best with Gunga. Jenny compliments her, laughs at her jokes, shows concern for her safety, and watches the New Year's Eve fireworks show with her. Nanefua has also stood up to Kofi for being harsh, and distracted him from getting Jenny in trouble.
Buck Dewey and Sour Cream
Jenny's two best friends are assumed to be Buck and Sour Cream, knowing Buck as early as when Steven was a baby. They hang out with her as part of the "cool kids" group in town, and she drives the group around in her family's Fish Stew Pizza car.
Steven and Jenny are good friends; she finds Steven to be a good kid and likes his straightforward attitude. She lets him ride along with her and her other friends in "Lars and the Cool Kids", "On the Run", and "Joy Ride". Jenny genuinely enjoys hanging out with him, and risks her life by jumping in the path of Garnet's fist right before she is about to destroy the Escape Pod that Steven is trapped inside.
Jenny tolerates him, considerably more so after Steven credits him with driving them to the hill overlooking Beach City in "Lars and the Cool Kids". Jenny is seen hanging out with Lars, along with Buck and Sour Cream in "Joking Victim". She thanks him for inviting them over. However, in "The New Lars", when she walks out of the shop and sees Lars is there, she shows irritation with a sigh, as if she in fact does not really enjoy his company. This could be due to his grumpy personality, as she very much welcomes his out of character niceness and compliments.
Though not very knowledgeable about the Crystal Gems, her personality and Amethyst's are very much alike as they are both carefree and love having fun. This is shown as they play volleyball on the same team in "Beach Party" and pose alongside each other in "Joy Ride". She also doesn't mind giving Amethyst a ride in her car in "On the Run".
In "Rising Tides, Crashing Skies", she called the Crystal Gems crazy because Garnet almost punched her in the face. She seemed upset by that, although she said she wasn't mad at them.
When she asked about his movie in "Rising Tides, Crashing Skies", Kiki tells her to "let him be." In addition, Ronaldo introduces Jenny as an "Intimidating teenage girl" in his video. This implies she might be known for picking on or messing with him, but this has yet to be gone into.
|1. "Gem Glow":||Absent||14. "Lars and the Cool Kids":||Debut|
|2. "Laser Light Cannon":||Absent||15. "Onion Trade":||Absent|
|3. "Cheeseburger Backpack":||Absent||16. "Steven the Sword Fighter":||Absent|
|4. "Together Breakfast":||Absent||17. "Lion 2: The Movie":||Absent|
|5. "Frybo":||Cameo||18. "Beach Party":||Appears|
|6. "Cat Fingers":||Absent||19. "Rose's Room":||Cameo|
|7. "Bubble Buddies":||Absent||20. "Coach Steven":||Absent|
|8. "Serious Steven":||Absent||21. "Joking Victim":||Appears|
|9. "Tiger Millionaire":||Absent||22. "Steven and the Stevens":||Absent|
|10. "Steven's Lion":||Absent||23. "Monster Buddies":||Absent|
|11. "Arcade Mania":||Absent||24. "An Indirect Kiss":||Absent|
|12. "Giant Woman":||Absent||25. "Mirror Gem":||Absent|
|13. "So Many Birthdays":||Absent||26. "Ocean Gem":||Cameo|
|27. "House Guest||Absent||40. "On the Run":||Cameo|
|28. "Space Race":||Absent||41. "Horror Club":||Absent|
|29. "Secret Team":||Absent||42. "Winter Forecast":||Absent|
|30. "Island Adventure":||Absent||43. "Maximum Capacity":||Absent|
|31. "Keep Beach City Weird":||Cameo||44. "Marble Madness":||Absent|
|32. "Fusion Cuisine":||Absent||45. "Rose's Scabbard":||Absent|
|33. "Garnet's Universe":||Absent||46. "Open Book":||Absent|
|34. "Watermelon Steven":||Absent||47. "Shirt Club":||Appears|
|35. "Lion 3: Straight to Video":||Absent||48. "Story for Steven":||Absent|
|36. "Warp Tour":||Absent||49. "The Message":||Absent|
|37. "Alone Together":||Cameo||50. "Political Power":||Appears|
|38. "The Test":||Absent||51. "The Return":||Cameo|
|39. "Future Vision":||Absent||52. "Jail Break":||Absent|
|1. "Full Disclosure":||Cameo||14. "Historical Friction":||Cameo|
|2. "Joy Ride":||Appears||15. "Friend Ship":||Absent|
|3. "Say Uncle":||Absent||16. "Nightmare Hospital":||Absent|
|4. "Love Letters":||Absent||17. "Sadie's Song":||Appears|
|5. "Reformed":||Absent||18. "Catch and Release":||Absent|
|6. "Sworn to the Sword":||Absent||19. "When It Rains":||Absent|
|7. "Rising Tides, Crashing Skies":||Appears||20. "Back to the Barn":||Absent|
|8. "Keeping It Together":||Absent||21. "Too Far":||Absent|
|9. "We Need to Talk":||Absent||22. "The Answer":||Absent|
|10. "Chille Tid":||Absent||23. "Steven's Birthday":||Absent|
|11. "Cry for Help":||Absent||24. "It Could've Been Great":||Absent|
|12. "Keystone Motel":||Absent||25. "Message Received":||Absent|
|13. "Onion Friend":||Absent||26. "Log Date 7 15 2":||Absent|
|1. "Super Watermelon Island":||Absent||13. "Kiki's Pizza Delivery Service":||Appears|
|2. "Gem Drill":||Absent||14. "Monster Reunion":||Absent|
|3. "Same Old World":||Absent||15. "Alone at Sea":||Absent|
|4. "Barn Mates":||Absent||16. "Greg the Babysitter":||Absent|
|5. "Hit the Diamond":||Absent||17. "Gem Hunt":||Absent|
|6. "Steven Floats":||Absent||18. "Crack the Whip":||Cameo|
|7. "Drop Beat Dad":||Non-speaking||19. "Steven vs. Amethyst":||Absent|
|8. "Mr. Greg":||Absent||20/21. "Bismuth":||Absent|
|9. "Too Short to Ride":||Cameo||22. "Beta":||Absent|
|10. "The New Lars":||Appears||23. "Earthlings":||Absent|
|11. "Beach City Drift":||Appears||24. "Back to the Moon":||Absent|
|12. "Restaurant Wars":||Appears||25. "Bubbled":||Absent|
|1. "Kindergarten Kid":||Absent||14. "The Zoo":||Absent|
|2. "Know Your Fusion":||Absent||15. "That Will Be All":||Absent|
|3. "Buddy's Book":||Absent||16. "The New Crystal Gems":||Non-speaking|
|4. "Mindful Education":||Absent||17. "Storm in the Room":||Absent|
|5. "Future Boy Zoltron":||Non-speaking||18. "Rocknaldo":||Non-speaking|
|6. "Last One Out of Beach City":||Absent||19. "Tiger Philanthropist":||Absent|
|7. "Onion Gang":||Absent||20. "Room for Ruby":||Absent|
|8/9. "Gem Harvest":||Absent||21. Lion 4: Alternate Ending":||Absent|
|10. "Three Gems and a Baby":||Flashback||22. "Doug Out":||Absent|
|11. "Steven's Dream":||Absent||23. "The Good Lars":||Appears|
|12. "Adventures in Light Distortion":||Absent||24. "Are You My Dad?":||Absent|
|13. "Gem Heist":||Absent||25. "I Am My Mom":||Absent|
|1. "Lion Loves to Fit in a Box":||Absent|
|2. "The Classroom Gems: What Are Gems?":||Absent|
|3. "We Are the Crystal Gems":||Cameo|
|4. "The Classroom Gems: How Are Gems Made?":||Absent|
|6. "The Classroom Gems: Fusion":||Absent|
|7. "Cooking with Lion":||Absent|
|8. "Gem Karaoke":||Absent|
|9. "Steven Reacts":||Absent|
|10. "Video Chat":||Absent|
|11. "Steven's Song Time":||Absent|
- Jenny and her sister Kiki are both voiced by Reagan Gomez-Preston, who voiced Roberta Tubbs in Seth McFarlane's The Cleveland Show after Nia Long's departure.
- All of the Cool Kids have parallels with the Crystal Gems.
- Like Amethyst, Jenny is fun-loving and dislikes responsibility. She also has similar cat-eyes to Amethyst, similar full lips, and are both made of circular shapes.